Elaine travelled 354.9 miles on her last tank of gas. when she stopped to get gas, her car required 9.1 gallons of gas. how many miles. per gallon did her car average on this trip

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.

Evaluate 3(a + b + c)squared for a = 2, b = 3, and c = 4. a. 54 b. 243 c.729 add solution .

Amountain climber starts a climb at an elevation of 453 feet above sea level at his first rest stop he has climbed 162 feet and by his second rest stop he has climbed another 207 feet its getting late in the day so the climber starts his way down if the climber desends 285 feet how much does he need to ascend or descend to return to the original starting point