The legs are 5 inches long.
Use the Pythagorean theorem:

The length of the hypotenuse of the triangle is approximately 7 inches long.
37.5
9/24=0.375
Move the decimal two places and you get 37.5%
N*(21/100)=(700/100)
n=(700/100)/(21/100)
n=(700/100)*(100/21)
n=700/21
n=33+1/3
So <em><u>thirty three</u></em> $0.21 pencils can be purchased for $7.00.
Answer:
y = 5x + 5
Step-by-step explanation:
m = 5
y = mx + b
25 = 5(4) + b; b = 5
y = 5x + 5