If a number is doubled, and 16 is added to it, the result is 40. What is the number?

An adult blinks about 450 times in 30 minuets. a twelve year old blinks about 150 times in 15 minuets. how many more times does an adult blink in 60 minuets than a twelve year old?

What is the following product? Sqrt 30 • sqrt 10 2 sqrt 10 3 sqrt 10 4 Sqrt 10 10 sqrt 3

A game room has a floor that is 400 feet by 90 feet. A scale drawing of the floor on grid paper uses a scale of 1 unit:5 feet. What are the dimensions of the scale drawing? Enter your answer as length by width.

Write a polynomial of least degree with roots 6 and 8.

A beacon flashes a light regularly 5 times a minute. A neighboring beacon flashes a light regularly 4 times a minute.

Is 3 yards greater than less than or equal to 21 feet

Bridget bought cupcakes for her sister's birthday party. 80% of the 45 cupcakes had sprinkles on top. How many cupcakes had sprinkles?

Jack has no more than $24 to spend on DVD's for a party. Each DVD rents for $4. Find the maximum number of DVD's jack can rent for his party. answer must be written on a number line

A 15-foot ladder is leaning against a house. The bottom of the ladder is 9 feet away from the base of the house. How far up the house does the ladder reach

69 rounded to the nearest ten