A sphere with radius r has a volume of 100 square units. What is the volume of a sphere with a radius 3r?

Ruth is making a necklace for a friend. she has 3 different types of clasps, 2 different chains, and 5 different cnarms. if she only puts one charm on the necklace, how many different necklaces could she make? a) 3 b) 10 c) 25 d) 30

Ryan buys a helmet for $20 and a bike that is on sale for $25 off. At the register, the cashier takes an additional 10% off the total purchase. If the initial price of the bike is $260, what is the final amount Ryan will pay?

What numbers are integers but not whole numbers?

The bakery bought 4 bags of flour containing 3.5 kg each. 475 g flour are needed to make a batch of muffins and 0.65 kg is needed to make a loaf of bread.

Solve 4x^2+8x-5=0 Using the correct method. Show the steps of your work, and explain why you chose the method used

What's 1 fourth of 1490

25 more than 50 as an expression

Edith works for x amount of hrs that pays $4 she also has accepted another job that pays $8 an hr working y amount of hrs she can only work 15 hrs a week. Edith wants to earn at least 80 a week. Working both jobs

Jacob counts 37 ants on the sidewalk and 11 ants on the grass. how many ants does Joes count?

A number decreased by fifteen is less than two.