Simply each expression
(only do the underlined)

a-187

b-34

c-518

d-98

e-3

f-39385

g-90

h-64

Step-by-step explanation:

The attached picture explains the procedure.

Note that in each case, I solve first the inner parentheses, and then the outer

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.

answer: 5

step-by-step explanation: