Are you trying to add together everything she made in a span of time? If so:
22 + 55 + 38 + 25 = 140
Answer:
87km
Step-by-step explanation:
Volume is proportional to radius cubed, so radius is proportional to the cube root of volume.
Increase volume by a factor of 10^6 and radius increases by a factor of the cube root of 10^6, which is 10^(6/3) = 10^2 = 100.
100 * 0.87 km = 87 km
Disregard the 9x+3y in the pic. The answer is 3/4x-13/12=y
