Wally counted 50 pennies from his piggy bank. He kept 80% of them. How many pennies did Wally keep?

Atriangular bandana has an area of 46 square inches. the height of the triangle is 5 3 4 inches. enter and solve an equation to find the length of the base of the triangle. use b to represent the length of the base.

Brook states that the distance on the line is 4 units. caleb states that the whole line does not have a distance because it continues on forever. vivian states that the line is 6 units long. which distance did brook measure? which distance did vivian measure?

What is the average rate of change for this function for the interval from x=2 to x=4 ?