A boat has a speed of 9 mph in calm water. It takes the boat 4 hours to travel upstream but only 2 hours to travel the same distance downstream. Which equation can be used to find c, the speed of the current?

Cameron has 11 adult fantail goldfish. This is 7 fewer fantail goldfish than his friend Julia has. Write and solve a subtraction equation to determine the number of Fantail goldfish g that Julila has.

How to solve 3 variable systems

What is the answer to 7-7 (1x-7) >-4+5x

Which ordered pair in the form (a, b) is a solution of this equation? 3a - 4b = 21 A. (-3, - 2) B. (-2, - 3) C. (0, 7) D. (7, 0)

City high school had a student reduction and lost 3/4 of its students. if 87 of its students were left after the reduction, how many students wete there originally?

What is the equation of a line that passes through (0, 5) and (-10, 0)

What is 7 square root 4 to the power of 3?

What is the degree of this polynomial? - 11x^3+10x

Macie just bought a new fish tank. The fish tank is a cube with a side length of 1.75 feet. She is going to fill the fish tank using a small plastic container she found in her kitchen cupboard by filling it at the sink, walking it to the tank,

Tim bought a soft drink for 2 dollars and 4 candy bars. He spent a total of 18 dollars. How much did each candy bar cost?