While scuba diving, Rajeev dove to a depth of 12.6 feet below the surface of the water and then descended another 8.7 feet. What expression can be used to find Rajeev’s new position?

A.12.6 – 8.7
B.–12.6 – 8.7
C.–12.6 – (–8.7)
C.12.6 – (–8.7)

B. –12.6 – 8.7

Step-by-step explanation:

Rajeev went below the surface of the water, meaning his position is negative.

So his current position is -12.6.

Then he started going down further so it is still negative.

So calculating his position would be -12.6 - 8.7

y < -3

step-by-step explanation:

-3y - 2 > 7

-3y -2 + 2 > 7+2

-3y > 9

-3y/-3 < 9/-3   (change the inequality sign when multiplying or dividing by a negative number)

y < -3

the functions have the same rate of change i think. i narrowed it down to this answer and "the rate of change of tour 1 is greater" but i got it wrong using that answer so im assuming its the answer above. (this is a question i also answered from the iready site if anyone needs a reference)