Find the whole.

20% of (space) is 18.

Acertain population of bacteria demonstrates exponential growth doubles in size every 4 days. how long will it take the population to triple in size?

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers

When 142 is added to a number the result is 64 more then 3 times the number. option 35 37 39 41