Abdul uses 12/19 gallon of paint to paint 4 birdhouse. how much paint for 1 birdhouse?

 3/19 gallon

Step-by-step explanation:  1/4 of 12 is 3.

Just keep the denominator.

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.

use distributive property on all like terms and change your signs if you have a double negative or if you have positive/negative