Find the equivalent expression using the same basis (34•84)^3

The answer is 2^9•3^3•7^3•17^3

Step-by-step explanation:

First, we simplify the expression inside bracket

34•84

= (2•17)•(2•42)

= (2•17)•(2•2•21)

= (2•17)•(2•2•3•7)

= 2^3•3•7•17

Substituting back

(34•84)^3

= (2^3•3•7•17)^3

= 2^9•3^3•7^3•17^3

47

step-by-step explanation:

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.