Square a. yes; measure of interior angle = 90 b. no; measure of interior angle = 90 c. yes; measure of interior angle = 45 d. no; measure of interior angle = 45

final answer is : )

the answer would be 1 1/72

step-by-step explanation:

you can rewrite the equation by separating the parts and then solving individually:

10-9=1

1/8 - 1/9=

find l c d and then combine:

1 1/72

b, 20 yards

step-by-step explanation:

answer: 8 years

step-by-step explanation:

the explanation is that in 8 years the child will be 20 and in 8 years the father will be 40 and 20 is half of 40.