Raphael is twice as old as his sister. The sum of their ages is less than 30. What is the greatest age Raphael sister can be?

A. 20 years old

B. 15 years old

C. 9 years old

D. 10 years old

Which statement is true about the function f (x) =

How many packages of diapers can you buy with $16 if one package cost $4?

John is 55 inches tall. Shania is 1.1 times taller than john

Find the mean and range. 20 14 29 39 33 25 19 35

An 18-ounce box of cereal costs $2.76, how many ounces should a box priced at $2.07 contain?

Carina spent a total of $5.27 buying a pineapple for $3.40 and some tomatoes that were on sale for $0.85 per pound. To determine the number of pounds of tomatoes that she bought, x, Carina wrote and solved the equation as shown below. 3.40 + 0.

Alicia cashed half of her paycheck and set aside the other half to take her friends out to dinner. She spent $42.15 on dinner and brought home more than $20.00.

How do you find 10% of a whole number?

If y varies directly as x, and y is 6 when his 72, what is the value of y when is 8

Substitute t=3 and t=5 to determine if the two expressions are equivalent