Answer:
9
Step-by-step explanation:
(9*3) = 27 which is 20 more than 7
Answer:
63/2 or 31.5
Step-by-step explanation:
we can split this shape into 2, a triangle and a rectangle
A triangle = bh/2 = 7*3*1/2 = 21/2
A rectangle = b*h = 3*7 = 21
21/2 + 21 = 63/2
Answer:
r=-7
Step-by-step explanation: