Mary collects dolls. She has 4 dolls more then her friend Penney. Mary says if she tripled the number of dolls she has, she would have 27 dolls. How many dolls does Penney have?

True or false? In a two-column proof, the left column contains a series of deductions. A. True B. False

Is 39/49 in simplest form

The product of two numbers is 5 greater than their sum. One number is x, and the other number is 3. Which of the following equations could be used to me X? A. 3x = (x + 3) - 5 B. 3x = x+3 / 5 C. 3x = (1 - 3) - 5 D. 3x = (x + 3) + 5 E.

Which expression can be used to find the area of a circle with a diameter of 30 cm?

Which question is a statistical question? How many theaters are there in my city? How many students in my class like classic movies? How many movies do the students in my class watch in a month? How many students in my class watch movies on weekdays?

The kindergarten teacher wants to divide 1/2 of her classroom into 5 equal sections for stations

A train traveling at 30 miles per hour reaches a tunnel which is 9 times as long as the train. If the train takes 2 minutes to completely clear the tunnel, how long is the train in miles? (1 mile = 5,280 feet)

The cost for 7 dance lessons is $82. the cost for 11 is $122. write a linear equations to find the total cost C for L dance lessons. How much for 4 lessons?

What is 9.09 repeating as a fraction?

The number of gallons of water in a tank that already has 300 gallons in it after being filled at 35 gallons per minute for m minutes