What is an equivalent expression for x^-3 that uses positive exponents

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

Round 421,906 to the nearest hundred thousand and to the nearest thousand

Jill arranged her baseball cards in 4 rows of 9 cards then she arranged the cards in 2 rows of 18 cars how many other ways can Jill arrange her baseball cards in equal rows

4, 16, 13, 52, 49, 196, 193, 772, _ What comes next?

What's 1 fourth of 1490

25 more than 50 as an expression