Norris can row 3 miles upstream against the current in the same amount of time it takes him to row 5 miles downstream with the current. Solve the system {r−c=3r+c=5
for r, his rowing speed in still water. Then solve for c, the speed of the river current.

1.two more than the quotient of a number and 6 is equal to 7 use the c for the unknown number translate the sentence into an equation

Solve the following inequalities and show the solution on a number line. 3/4 (2x-7) ≤ 5

Circle a has a diameter of 7 inches, a circumference of 21.98 inches, and an area of 38.465 square inches. the diameter of circle b is 6 inches, the circumference is 18.84 inches, and the area is 28.26 square inches. part a: using the formula for circumference, solve for the value of pi for each circle. (4 points) part b: use the formula for area and solve for the value of pi for each circle. (4 points)