what is 8x-12 and if u don’t want to answer then don’t and if u don’t know the answer then don’t answer however if u do know if pls help me with it and I’ll give brainliest to you

In pqr the obtuse angle is 105 and the shorter sides measure 4 and 7 units rounded to the nearest tenth what is the area of triangle pqr

Write the sentence as an equation. 6 fewer than the quantity 140 times j equals 104

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).