What causes the need to use imaginary numbers

3 fractionns equivelent to 12/36

1. Mr. Li did some push-ups on Monday and Tuesday. On Tuesday, he did 300 push-ups, which was three times the difference of the number of push-ups he did on Monday and the number 50. How many push- ups did he do on Monday?

An exterior angle of a triangle is 180 degrees

A bag contains different colored candies. There are 50 candies in the bag, 28 are red, 10 are blue, 8 are green, and 4 are yellow. What is the probability of choosing one candy that is not green?

If 64 feet of rope weigh 20 pounds how much will 80 feet of the same type of rope weigh

Which of the following should be measured with a meter stick, not a tape measure? A. the circumference of an orange B. the length of ribbon needed to tie around a vase C. the size of a student's waist D.

Simplify - 3√ 2 + 3√ 8.

In triangle GHI, HI=GH, angle IHG=3x+4 and angle IGH=2x-24. What is angle HIG

In the summer, you charge people $10 for going to their house to mow lawns, then $6 for every hour you mow. If you make $34 one day, how many hours did you spend mowing?

I need three examples of percent problems for math?