8 - ? = -1. the missing number would be 9.
Answer:
a = 5
Step-by-step explanation:
a/4 = 15/12
We can use cross products to solve
a* 12 = 4*15
12a = 60
Divide each side by 12
12a/12 = 60/12
a =5
The answer would be each pair of sandals costed $14
$14+$14=28+$3=$31
last one
Step-by-step explanation:
3 1/2
answer is last one
Because triangles also equal a total of 180 degrees, the answer is B
