Answer:
the answer is 7
Step-by-step explanation:
the right angle is 90°
90-55=35
35÷5=7
D,4 times as large as the expressian
because 4x is multiplucation so it means that it multiplys that number
assuming each grid is 1
period = 11 - 1
= 10
the expression is not factorable with rational numbers.
