The equation r=10a-20 represents the revenue r (in dollars) you make by spending a dollars on advertising. you revenue totaled $110. how much did you spend on advertising

Solve -3 (r + 5) = -9 enter ur answer in the box x = __

You want to volunteer for at most 20 hours each month. so far, you have volunteered for 7 hours this month. which inequality represents the number of hours h you can volunteer for the rest of this month? h? 13

Asap 25 pts + brainliest to right/best answer