What is the answer to this equation when finding b

ax+by=c

Dally has 5 pies she gives 2 to her friends. How many pies does she have left.

Ann runs 3 miles in 28 minutes. At the same rate, how many miles would she run in 42 minutes?

What's the gcf of 38, and 68

How long is 63 months in years?

Write the equation of the line with a slope of - 1 and a y-intercept of - 6

Two cars start at the same time, but travel in opposite directions. One car's average speed is 80 miles per hour (mph). At the end of 4 hours, the two cars are 520 miles apart. Find the average speed in mph of the other car. (Enter an exact number.

Bao can eat 12 chicken wings in 3 minutes. She eats the chicken wings at a constant rate.

An airplane leaves the airport at 2 pm and travels 650 mph to its destination. A second plane leaves at 6 pm and travels 800 mph. How long before the second plane reaches the same distance as the first plane?

The combustion of 0.25 mol of an unknown organic compound results in the release of 320 kJ of energy. Which of the compounds in the table could be the unknown compound?

Expand the number 425 into its corresponding exponential form.