Add 10 days 20 hours to 16 days 7 hours. Do not round until the final answer. Then round to the nearest hundredth as necessary.
days hours.

step-by-step explanation:

given the equation is 8+9z=-6, the first step would be to subtract the 8 from both sides:

8+9z-8=-6-8

since 8 minus 8 = 0, this would cancel out the 8. and since -6 minus 8 equals -14, the equation would look like this

9z = -14

c.) 38 blocks

mark brainliest   : )