HELP NOW 20 points The price of four tires changed from $638 to $523.16. Find the percent of increase or decrease

Which exponent makes the following statement true? 1/9^7=9^?

Which of the following sets of three lengths could be sides of a right triangle?
A- 15cm, 26cm,41cm
B-18cm,18cm,18cm
C- 16cm,63cm,65cm
D-17,17,34

The scale on a map of Texas states that 1cm:50km. If the distance on the map between Houston and Dallas measures 7cm, what is the actual distance between the two cities?

A store owner decides to increase the price cat carrier by 7%. If the current price of the carrier is $53.00, what is the price after increase?

The area of Egypt is approximately 390,000 square miles. What is this number in scientific notation?

The cost of a half gallon of milk at your local store is $1.38 . Write this as a unit rate

Which of the following is an integer multiple of the unit fraction 1/5?

A rectangle has the length of 19in and the height of 11in . Another rectangle has the length of 9.5in and a height 6.5in. Are the rectangles similar?

24 of the jackets for sale at a clothing store are blue. If this represents 15% of all jackets in the store, how many jackets are not blue?

rick has $1400 and sally has $1500

step-by-step explanation:

to find amount of money rick has after 10 years :

principal = $1000 , time = 10 years , rate = 4% annually

to find amount of money sally has after 10 years :

her friend gives to pay her $50 per year, therefore money she has after 10 years = 50 × 10 = $500

also, sally gets $1000 after 10 years,

therefore, total amount of money sally has after 10 years = 500 + 1000 = $1500

so, after 10 years : rick has $1400 and sally has $1500

9x

region b will make the inequalities y < 2x + 1 and y > -x - 2 true ⇒ answer a

step-by-step explanation:

* lets study the graph and the inequality to solve the question

- the inequality y > -x - 2

∵ the form of the inequality is y > mx + c , m is the slope of the line

  and c is the y-intercept (the line intersect y-axis at point (0 , c)

∴ c = -2 that means the line intersect the y-axis at point (0 , -2)

∵ the sign of the inequality is >

∴ we shad the part over the line

  region a and b

- the inequality y < 2x + 1

∵ the form of the inequality is y > mx + c , m is the slope of the line

  and c is the y-intercept (the line intersect y-axis at point (0 , c)

∴ c = 1 that means the line intersect the y-axis at point (0 , 1)

∵ the sign of the inequality is <

∴ we shad the part under the line

  region b and c

∵ the common region between the two lines is region b

∴ region b will make the inequalities y < 2x + 1 and y > -x - 2 true

2y+y=5

add 2y and y