Answer:
Step-by-step explanation:
If the books length (L) is three times as long as the width (W), the equation for area is this:
L · W = 20 inches,
3W · W = 20 inches - substituting L for 3W
So then the books perimeter is
Answer:
r < 4/7
Step-by-step explanation:
35r - 21 < -35r + 19
35r + 35r < 19 + 21
70r < 40
r < 4/7
Answer:
S=8
Step-by-step explanation:
PLS MAKE ME AS BRAINLIST