Question

Katy can solve equations at the rate of 26 per hour. Timmy can solve them at
20 per hour. When they start their homework assignments, Katy has already
solved 3 problems in study hall and Timmy has already solved 8.

a) Write two expressions, one each for the number of equations Katy and Timmy
will have solved.
b) How many equations has each solved in 30 minutes?
c) How long will it take until each has solved the same number? How many
equations is this?
d) There are 27 equations to be solved all together. Who finishes first? Show your
work.