SOMEONE PLEASE HELP BECAUSE I DON'T UNDERSTAND THIS

Astore ordered 750 candles a total wholesale cost of $7910.20. the soy candles cosy $12.17 each and thespecialty candles cost $9.58each. how many of each were bought?

Use the method of cylindrical shells to find the volume v generated by rotating the region bounded by the curves about the given axis.y = 7ex, y = 7e^-x, x = 1; about the y-axis

Apackage of orgainc strwberries costs $1.50 while there in season and $2.25 when not in season what the percent increase