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

What percent of 371 is 120?

William buys a basket of lemons on sale for $11 before tax. The sales tax is 15%. What is the total price William pays for the basket of lemons?

Zoe has 2 ten-dollar bills, 4 one-dollar bills, 3 quarters, 5 dimes, and 8 pennies. How much money does she have?

The number of measles cases has increased by 14% since 2000. Express your answer rounded correctly to the nearest hundredth. Stated another way, the number of measles cases is 2 times what it was in 2000.

The perimeter of a triangle is 79.75 inches. the second side of the triangle is half as big as the first side. the third side is 7.25 in. greater thatn the first. what is the length of the longest side?

Describe the similarities and differences in find the lateral areas of a prism and a pyramid that have congruent bases

Video game $35.99 and sales tax 6.75

What is the correct answer after multiplying both sides of the inequality - x ≥ 5 by - 1?

Wayne is mixing paint. He makes six quarts of brown paint by mixing equal quantities of yellow paint and violet paint. The violet paint is made from one- third red paint and two-thirds blue paint.

Why do scientist use a universal system of measurement?