In APQR, the measure of ZR=90°, the measure of ZP=48°, and RP = 8.9 feet. Find the length of QR to the nearest tenth of a foot.

Each month, a shopkeeper spends 5x + 14 dollars on rent and electricity. if he spends 3x−5 dollars on rent, how much does he spend on electricity? for which value(s) of x is the amount the shopkeeper spends on electricity less than $100? explain how you found the value(s).

Barbara deposited $300 in the bank. if the bank pays her simple interest at the rate of 4 percent per year, how much money will she have in her account at the end of 9 months?

Write the sine and cosine values of a, b, respectively, in the figure for (1) and (2) + explanation.