Evaluate 4.68 + 2.7 + 13.289

Simplify a7/a4 a) 1/a3 b)-a/a2 c)a4/a3 d)a3

Solve with work adding cheese to a mcdonalds quarter pounder increases the fat content from 21g to 30g. what is the percent of change ?

Seattle, washington is known for being rainy. one day last month, 8 inches of rain fell in 1 1/2 hours. what us the rate of the rainfall expressed in ft per plzzz write a proportion i will give you 100 points