Simplify the following:

3/4 + 5 - 1/2

=21/4

(Decimal: 5.25)     if i could get brainliest that would be great, need one more lol

Step-by-step explanation:

3/4+5−1/2=

23/4−1/2=

21/4

(x+3)(x+7)

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.