7th grade math, please answer as soon as possible!

What two consecutive odd integers have a sum of -28

Asquare parking lot has 6,400 square meters what is the length in meters

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.