On tuesday, 40 students visited the store and purchased felt tip pens. 27 students purchased blue ones and 20 students purchased red ones. how many students purchased both blue and red pens?

The Question is: Write 1/3 and 3/4 as a pair of fractions with a common denominator

Melisande collected 14 bottles on Saturday and 9 bottles on Sunday for recycling. On Monday, she took all the bottles to the recycling center, where they paid her a certain amount, b, for each bottle.

3x + 9b + 5ax + 15ab

Consider this scenario: A town has an initial population of 80,000. It grows at a constant rate of 1,500 per year for 5 years.

The perimeter of a rectangle garden is 43.8 feet. It's length is 12.4 feet. What is it's width?

What is the rule for 24, 48, 72,

Eight more then the number Let n represent an unknown number

Yoku Is putting on sunscreen. He uses 2 ml to cover 50 cm² of his skin. He wants to know how many milliliters of sunscreen he needs to cover 325 cm² of the skin.

Find the measures of

Which value of x makes this inequality true? X + 9 < 4x