Match each item in column a to an answer in column b.
what property is shown by the equation?
column a

1. -27 ✖️ (-1) = 27
2. -14 ➗ 1 = -14
3. 0 ➗ (-3) = 0
4. 9 ✖️1/9 = 1
column b

a. reciprocal property of multiplication
b. identity property of division
c. identity property of multiplication
d. division into zero property
e. negative one property of multiplication

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.

Inez has a phone card. the graph shows the number of minutes that remain on her phone card a certain number of days.

Circle a has a diameter of 7 inches, a circumference of 21.98 inches, and an area of 38.465 square inches. the diameter of circle b is 6 inches, the circumference is 18.84 inches, and the area is 28.26 square inches. part a: using the formula for circumference, solve for the value of pi for each circle. (4 points) part b: use the formula for area and solve for the value of pi for each circle. (4 points)