Please help me Simplify: (−7x – 5) – (–9x2 + 8x + 7). Choose the standard form of the answer.

A. –16x2 – 15x – 12
B. 9x2 – 15x – 12
C. –9x2 + x – 2
D. 9x2 + 56x – 35

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angle measure.

The frequency table shows the results of a survey comparing the number of beach towels sold for full price and at a discount during each of the three summer months. the store owner converts the frequency table to a conditional relative frequency table by row. which value should he use for x? round to the nearest hundredth. 0.89 0.90 0.92 0.96

Oliver read for 450 minutes this month his goal was to read for 10% more minutes next month if all of her medicine go how many minutes will you read all during the next two months