Amelia had 23 sea shells. Then, she collected 10 more sea shells. After that, she gave S sea shells to her little sister. Which of the following shows how many sea shells she has currently?

At school there are 526 students and 263 are girls about how likely is it that a randomly chosen student will be a boy

The weight of an object in the water is 7% of its weight out of the water. what is the weight of a 652g object in the water?

Problem 3 a bank charges a service fee of $7.50 per month for a checking account. a bank account has $85.00. if no money is deposited or withdrawn except the service charge, how many months until the account balance is negative