Hey guys so i have a math question which is how can you buy 100 items for exactly $1.00. a pencil is 10 cents each an eraser is 5 cents each and 2 paper clips for 1 cent. i need an answer quick.

Ageologist had two rocks on a scale that weighed 4.6 kilograms together.rock a was 0.5 of the total weight.how much did rock a weigh?

The radius of the earth is two times the radius of the moon. what fraction of the volume of the earth is the volume of the moon?

Darcy deposited $390 into a savings account. as long as the account balance remains at or above $150, she does not have to pay a service fee for the account. for how many months can she withdraw $40 a month without having to pay service fees? a) 3 b) 5 c) 6 d) 9