Answer:
135
Step-by-step explanation: Multiply 160 by 0.85(for 85%) and you get 135
Divide 4.10 by 7 to get about 0.59 (round up because you can't get part of a penny) and that gives you 1/8 of a yard's price. Then multiply that by 8 to get a full yard for $4.72.
The answer is option 4, (-1,2)
6 math books would be 126
5 English books would be 150
126+150=276
Answer: Positive Quadratic
Step-by-step explanation: A positive quadratic will have a minimum value, whereas a negative quadratic will have a maximum value