Learn with an example

Zachary and his family ordered a meal that cost $100. Zachary paid 7% sales tax and left a

20% tip on $100. What was the total cost?

Find the product (-5sqrt3) (8sqrt5)

brenda the brave sets to climb a mountain which is 12,000 feet high. She plans to climb 3000 feet each day, before taking overnight rest. A mischievous mountain sprit, however decides to test Brenda's resolve.

The number of bacteria in a petri dish is multiplied by a factor of 1.2 every hour. There were initially 500 bacteria. Which expression gives the number of bacteria after 3 hours?

At the newest animated movie, for every 999 children, there are 444 adults. There are a total of 393939 children and adults at the movie. How many children are at the movie?

What is the perimeter of this rectangle 50feet 35 feet

Morgan mowed 12 lawns in 2 hours. What was her rate of mowing in lawns per hour? Express your answer in simplest form.

If y=-4 when x=10 find y when x=5

If C (x) is the total cost incurred in producing x units of a certain commodity, then the average cost of producing x units of the commodity is given by C¯ = C (x) x, for x > 0.

Find the nonpermissible replacement for x in this expression. X-4/X-8

How many fluid ounces are there in 5 quarts?