Plug in 2 to see if she is correct. Hope this helps!
Answer:
85 beats per minute
Step-by-step explanation:
khan academy
Answer:
I'm not to sure about this particular answer but it should be b: $1,354 .. you should also research on it more
Answer:
alllllllll
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