So you have to just subtract, 65-53=12 that didn't bring sleeping bags
The hand went around 7 numbers.
What I believe they are asking is to find which of those is the simplified quadratic formula. The quadratic formula is -b (plus or minus) (√b²-4ac) all divided by 2a.
This formula works when the equation is set up as ax²+bx+c
ANSWER: C)30yd EXPLAINED: base x hight devided by 2 or 1/2 hope this helps