Please help I don't know how do this

7.28

Step-by-step explanation:

The equation to solve this problem is the Pythagorean theorem aka

a squared + b squared = c squared

c = a(a) +b(b)= 2(2) + 7(2) = 53

the square root of 53 is approximately 7.28011

7.28011 rounded to the nearest hundread is 7.28

you would have to sell 24 bracelets.

step-by-step explanation:

84/3.5 = 24

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)