Answer:
-51
Step-by-step explanation:
Let's do order of operations.
10+8-70-(-1) <- We did negative 7 times 10.
18-70-(-1) <- We did 10 plus 18.
-52-(-1) <- We did 18 minus 70
When you open the () we get:
-52--1
Negative minus a negative equals a positive.
-52+1=
-51
The answer is the first one, 35000.
15r means that she burns 15 calories per min, for as many mins as she ran. EG: if she ran for 10 min, then she burned 150 cals. The other one I'm not so sure.
The slope intercept form using the two points would be : y= 2x-13