David has 80$. he spent 4/5 of his money on books. howmuch money did he have left? use a tape diagram to solve the problem

Daily output of marathon's garyville, lousiana, refinery is normally distributed with a mean of 232,000 barrels of crude oil per day with a standard deviation of 7,000 barrels. (a) what is the probability of producing at least 232,000 barrels?

Find the square root. V36 =

For every 6 toys, there are 14 candies in a piñata. If there are 70 candies, how many toys are there?

What is 5 times 7/8?

a science class have five girls and three boys in 7th grade at two girls and two boys in the 8th grade the teacher randomly selects a 7th grader and an 8th grader from the class for competition what is the possibility that the students she selected

Roy is going on a 12 day bike trip. he plans to ride 35miles a day. how many miles will roy ride on the trip

Peter wrote the equation 4x - 2 = 10, and Andres wrote the equation 16x - 8 = 40. The teachers looked at their equations and asked them to compare them. Describe one way they are similar?

How many rational roots does x^4+3x^3+3x^2+3x+2=0 have?

A plot of rectangular land is divided into 3 sections, P. Q and R to plant three types of vegetables. The perimeter of the land is 170 m and the length of the land is 15 m more than its width.

How would you solve x - 19 = 1? Subtract 19 from both sides. Add 19 to both sides. Add 19 to the left side. Add 19 to the left side and subtract 19 from the right side.