Meghan says the difference between the least amount of time it takes a student to say the alphabet and the greatest amount of the time is 4 1/2 seconds. Do you agree? Explain.

How to choose the sign of the radical in the denominator of the formula for the distance from a point to a line.

Some boys and girls were asked if they had a pet. one third of the group were boys. there were 20 boys. 20% of the girls had a pet. boys with a pet : girls with a pet = 1 : 5 i need to know how many girls there are.

Tim open up a new saving account with a $50 deposit and plant to deposit $20 per week into the same account. write an expression to represent the total amount in his savings account.