John is 4 years older than his sister Mary. Together, their ages add up to 30. How old is Mary?

The area of a rectangle is 72 square feet. Its length is 12 feet. Which equivalent formula could you use to find the width? A: 2 c+$1.50 B:c/2-$1.50 C: $1.50/2 D: c-$1.50/2

Julian says a common denominator for 3/4 and 2/5 is 9. What is Julian error?

What is the value of 55.53 x 10 and 2

A triangle can be formed with side lengths 3 in, 5 in, and 9 in. True or False?

You approach a railroad crossing with a cross book sign that has no lights or gates. What should you do?

How do you write an equation in slope intercept form for an x intercept of - 6 and a y intercept of 2?

What's the unit rate of 16/32

The 2000 population of a city was 724 ,000 and was increasing at the rate of 1.46 % each year. At that rate, when will the population be 1 million? The 2000 population of a city was 724 ,000 and was increasing at the rate of 1.46 % each year.

What is true about the polynomial y squared-3y + twelve

Select the correct answer. Which angle measure less than or equal to 360° is equivalent to an angle of?