When u do a problem like this- 9+(-8) -does the -8 change to a positive 8 and does it become subtraction bc of the double negative rule?

Acable car begins its trip by moving up a hill. as it moves up, it gains elevation at a constant rate of 50 feet/minute until it reaches the peak at 2,000 feet. then, as the car moves down to the hill’s base, its elevation drops at the same rate.

The two expressions below have the same value when rounded to the nearest hundredth. log5 b log9 48 what is the approximate value of log b to the nearest hundredth? 0.93 1.23 9.16 65.53

If your teacher tells you to do questions 6 through 19 in your math book for homework, how many questions is that