Carlos spent 5 hours on math, 2 hours on science, and an hour on reading. Find the ratio of math to total hours.

If a boat travels 3 miles in 1.5 hours how far will it travel in 1 hour

Elena is paid a constant rate for each hour she works. the table shows the amounts of money that elena earned for various amounts of time that she worked.

Asmall business produces and sells balls. the fixed costs are $20 and each ball costs $4.32 to produce. each ball sells for $8.32. write the equations for the total cost, c, and the revenue, r, then use the graphing method to determine how many balls must be sold to break even.