David's cell phone company charges $0.45 for each text message plus a monthly fee of $50.00. He owes $91.40. Write and solve an equation to find the number of text messages did David has?

Solve for x and y y=2/3-2 y=-x+3

What is the educated guess in mathematics

Tim's mom filled the gas tank in her suv

Use rounding or compatible numbers to estimate the difference

1. You have 150 yards of fencing to enclose a rectangular region. One side of the rectangle does not need fencing. Find the dimensions of the rectangle that maximize the enclosed area. What is the maximum area?

The diagram shows the dimensions of the pool cover for a gotel pool. The numbers are 10ft 20ft 45 ft 8 ft 8 ft 8ft What is the area of the pool cover

3x+5-x=2x+7 is infinite real soluction, no real soluction or one real soluction

Select the correct answer. Which of these statements explains the term price? A. the money spent by a seller to advertise a product B. the money spent by a manufacturer to make a product C. the money spent by a buyer to purchase a product

A polling organization took a random sample of 3,000 middle school students to determine how many have a dog. Suppose that 57% of all middle school students have a dog.

When Sally went bowling, her scores were 108, 72, and 95. If she bowls a 4th game, what will her score need to be to give her an average of 91?