In addition to oxygen, several gasses are in air. Carbon dioxide makes up 0.00039 of air. What is 0.00039 written as a percent?

What is the GFC of 72 and 36

What does - 3 1/6+6 2/3 equal

ather went to the front near the crank to start the motor. Father put his thumb against his palm instead of putting it around the crank.

In a experiment investigating the growth of spores in varying soil conditions a certain spore colony grew an average of 3 times larger during each 24 hours period.

A small female gorilla weighs 68 kilograms. how much does she weigh in grams

If Allison practices her violin 12 hours a week and practices three fourths of an hour each day and has already practiced 3 hours how many mor lessons does she have to got to to complete the 12 hours

Estimate the mixed number 20by rounding to the nearest whole number or one-half. 20 3/20 estimates to ...

What is x1/2 * x1/3 =

Adam drew two samw size rectangles and divide them into the same number of equal parts. He shaded 1/3 of one rectangle an 1/4 of the other rectangle. What is the west number of parts into which both rectángles could one divided

Two trains start heading toward each other from two cities, the distance between which is 720 km and meet right in the middle. The second train left 1 hour after the first train, but traveled at a speed 4 km/hour faster than the first train.