Answer:
it is 1
Step-by-step explanation:
The shapes are similar.
When two figures are similar, the ratios of the lengths of their corresponding sides are equal.
Therefore,

Simplify:

Cross multiply:
42(10+x) = 57x
420 + 42x = 57x
420 = 57x - 42x
420 = 15x
x = (420÷15)
x = 28
Answer:
b
Step-by-step explanation:
The statement that is true would be later on as he crosses Stover Lake, he drives 30 minutes at the same average speed. Hope this helps