What is the area of a circle with a radius of 40 cm?

Translate this phrase into an algebraic expression. Six more than the product of 15 and a number Use the variable n to represent the unknown number.

B (x) = 7x + 3 and h (x) = 9x - 1. Find (b+h) (x)

The drama teacher wants to know whether more families of students at the school would attend a musical or a comedy.

How many milliliters are in a gallon?

What number can you add to pi to make it a rational number?

A gardener is making a triangular planting with one tree in the first row four trees in the second row seven trees in the third row and so on for eight rows what is the sequence that describes the number of trees in each row and find the total

Joey paints old furniture and sells the pieces at craft fairs. The function f (t) approximates how many pieces of furniture he paints per hour. The function w (h) represents how many hours per week Joey spends painting the pieces of furniture.

A state park charges a $6 entry fee plus $7.50 per night of camping write an algebraic expression for the cost in dollars of entering the park and camping for n nights

Ariana starts with 100 milligrams of a radioactive substance. The amount of the substance decreases by 20% each week for a number of weeks, w. The expression 100 (1-0.2) w finds the amount of radioactive substance remaining after w weeks.

you car has 30 miles per gallon your palanning to drive 930 miles how many gallons of gas do you need