Which expression represents the product of an unknown number and 19?

A.

19 : n

B.

n + 19

C.

n - 19

D.

19 • n

Is the ordered pair (-2, 7) a solution of the equation 5x + 4y = 18?

A cheese pizza costs $5 additional toppings costs $1.50 each. Write and graph an equation in 2 variables that represents the total cost of pizza. Let t represent the number of Toppings and c the total cost of the pizza

A paleontologist discovered the remains of a stegosaurus in London. The dinosaur should have 450 bones, but the paleontologist only found 80% of this number. How many bones have they discovered?

A construction company is digging a hole for a swimming pool the whole will be 12 yards long 7 yards wide and 3 yards deep how many cubic yards of dirt will the company need to remove

What is (5-m) + 0.2m = 3?

Suppose that state's record high temperature of 102 was set in 1930, and the record low of -14was set in 1966. What is the range of these temperature extremes?

Max makes a scale drawing of distance between salt lake city and Arizona. The distance between salt lake city and Arizona is 21 cm. If each 7 cm on the scale drawing equals 250 kilometers, how far apart are the salt lake city and Arizona.

What is 2 square roots between 9and 10?

An office supply store sells pencils individually or by the case. Pencils purchased individually cost $0.97 each. One case of forty pencils costs $37.20. You have an annual budget of $95.00 for pencils. Without exceeding the annual budget of $95.

Suppose you were a carpenter. Give the lenght, width, and height of a storage cabinet with a volume of 72 cubic feet that you would build. Explain your choice.