Is 1/-4 equivalent to - 5 divided by 20

What is 0.0002013 written in scientific notation? all of the - are to the power of 2.013*10-5 2.103*10-4 2.103*10-5 2.013*10-4

4x - 5y = 2 10x - 21y = 10

What is the solution of 2/3a+6>0

I am not sure how to divide this problem a^3+8/a+2

Dan is building a circular swimming pool and wants the circumference to be no more than 95 feet. What is the largest radius possible for the pool? Round to the nearest tenth of a foot.

Select the correct answer. You want to buy an item that costs $100. Which of these is the most cost-effective choice for buying the item?

Find the area of a circle from the given diameter d = 14 meters

If I was paying 875. now I pay 955. how much more am I paying

A belt and a wallet cost $42, while seven belts and four wallets cost $213. A) how much do four belts and four wallets cost? B) how much do three belts cost?

Qasim and Alejandra both earn $15 an hour at their job. This week Alejandra worked three hours more than Qasim. If h represents the number of hours Qasim worked, and in total they earned $195, how many hours did each person work?