Which is the best estimate of Negative 14 and StartFraction 1 over 9 EndFraction (Negative 2 and StartFraction 9 over 10 EndFraction)? –42 –28 28 42

42

Step-by-step explanation:

We want to find the the best estimate for

We round each number to the nearest whole number to get:

Recall that negative times negative gives positive result

This finally gives

Therefore the best estimate is 42

idk lol

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.