Ski resort charges snowboarder fee of $40 plus 8.5 per hour c(t)=__t+

Ihave a 69 and an 82. the 69 is worth 40% of my grade and the 82 is worth 15%. can someone tell me my current average grade.

Ateacher has $80 to buy workbooks. each work book cost $3. if she buys as many workbooks as possible, how much money does she have leftover? a) $2 b) $4 c) $6 d) $8

Triangle knm is what is true about the sides of knm