Write a recursive formula for the amount of helium in the balloon after n days.

an =

-1

an - 1 where a1 =

Two-thirds of the children in the fourth grade class are girls. if there are 14 girls, what is the total number of children in the class

A 1000-lb weight is being lifted to a height 10 feet off the ground. It is lifted using a rope which weighs 4 lb per foot and which is being pulled up by construction workers standing on a roof 30 feet off the ground.

If the distance of a pond is. 4 miles, how many laps will I have to do to run 5 miles

Evaluate and simplify the following expressions. 1. 2 (x + 6) - 4 + x 2. (x + 4) • 9 3. y + 7 + 8 - 7 (x - 8) 4. (4 - 5) + x (6 - 8) 5. y (4-8) - 3y 6. y (4-8) - 3y 7. x + 8y - 16x (1 - 3)

An aquarium holds 3D 3.75 gallons of water it has a length of 2 feet and a height of 1.5 ft what is the volume of the aquarium what is the width of the aquarium explain

What do you add to 2 2/9 to make 4

17. Solve 2⁄3 + 5⁄6 and put answer in simplest form.

Natalie is opening a clothing store. She plans to start by selling gym shorts. It costs her $7 for each pair of shorts, $3 per box for the shorts, and $0.25 a bag.

What is the equation of a line that passes through (0, 5) and (-10, 0)

What is 7 square root 4 to the power of 3?