Evaluate u+xy if u+18, x+10 and y=8
show your work

U+XY

18 + 10 (8)

18 + 80 = 98

Step-by-step explanation:

The given is U + XY

18 is your U, 10 is your X, and 8 is your Y.

If two variables are put together with no sign in between (like XY) then you multiply the two values of the variable.

In this equation, X = 10 and Y = 8. So you multiply 10 * 8, which equals 80.

So 18 + 80 = 98

I hope this helps!

the dimensions are:

step-by-step explanation:

we want to find the dimensions of a rectangular box with volume of

we factor to obtain;

we rewrite the rightmost factor to obtain;

recall that:

we apply difference of two squares formula to obtain;

hence the dimensions are

i believe the answer is the polygon, heptagon.