I think this is what your doing am assuming . forgot but just put -3a+1a solve it and then do -1+2 and you got your anwser
B. 2
the reason for this is because 2 is even, but it is also a prime number because 2 can't be divided evenly by a number.
Answer:
Step-by-step explanation:
perimeter of a rectangle = twice the length plus twice the width
P = 2L + 2W equation 1 P = 86 ft
Given the length is seven feet more than the width
L = W + 7 equation 2
Substitute equation 2 into equation 1
P = 2(W+7) + 2W = 86 ft
2W +14 + 2W = 86 ft
4W = 86 - 14
W = 72 / 4
W = 18 feet
Answer:
Step-by-step explanation:
Maria had a test with 20 questions
if 17 are correct,
20 questions................................100%
17 questions................................?%
she was 85% right
Answer:
(9+b)+7
Step-by-step explanation:
Putting parentheses separates the expression.