Answer the following questions

Question 1 : -8/3

Question 2  : 7.62 or unrounded 7.615773106.

Step-by-step explanation:

Question 1:

( 2 , 4 ) ( 5 , -4)

^      ^     ^     ^

x1    y1    x2  y2

Equation : y2 -y1 / x2 - x1

-4-4/5-2 = -8/3

Question 2 :

Equation : a^2 + b^2 = c^2

3^2 + 7^2 = c^2

3^2 = 9

7^2 = 49

9 + 49 = 58

Square root of 58 = 7.615773106.

1^3 + 2^3 + 3^3 +4^3 = (1+2+3+4)^2

step-by-step explanation:

i am only able to answer the first part. i am not sure about the second part. sorry

x= cost per bracelet

number of bracelets * x + shipping charge = total cost

so

9x+9=72