Does anyone understand Doubling?
Use the approximate doubling time formula (rule of 70) for the case described below. Gas prices are rising at a rate of 0.3% per month. What is their doubling time? By what factor will prices increase in 2 years? In 8 years?
What is it's doubling time in months?

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 3 days later). the pool was open on monday, but it was closed on thursday. the high temperature was 30∘c on monday, but decreased at a constant rate in the next 3 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.

Add the fractions and simplify 1/2+ 1/3

Roger could feed 5 walruses with 4 kilograms of fish. how many walruses could he feed with 7.2 kilograms of fish?