Ellie and Gabby decided to buy 100 lawn gnomes, so they could spread them all over the neighborhood when everyone was asleep. They had to borrow $348 at a monthly interest rate of 4.2% and it took them 3 years to pay it off. How much did they pay in total? a)$996.42
b)$1200.69
c)$394.64
d)$393.72

(if you can tell me the name of the formula you use in this kind of problem id appreciate it so much!!!)

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.

The base of a triangle exceeds the height by 9 inches. if the area is 180 square inches, find the length of the base and the height of the triangle.

2.5 milligrams is equivalent to how many grams