Answer:
300 i think
Step-by-step explanation:
Answer:
Dave worked 60 hours.
Step-by-step explanation:
Let's assume that Dave worked a total of
hours.
Since Kate worked 5 hours less than Dave: 
And Sarah worked 10 more hours than Dave: 
Combined, the three siblings worked 185 hours.

Dave worked 60 hours,
Kate worked 55 hours and Sarah worked 70 hours.
To check:
55 + 60 + 70 = 185 hours
Answer:
x=28
Step-by-step explanation:
Answer:
It's called a Diophantine Equation, and it's sometimes known as the “summing of three cubes”: Find x, y, and z such that x³+y³+z³=k, for each k from 1 to 100. One answer is x = 1, y = -1, and z = 2.
Step-by-step explanation:
I say A. Square Inches because it is a box and it have 4 sides so that why I say it A.