1. find the length of uw if wis
between u and v, uv = 16.8
centimeters, and ww = 7.9 centimeters.

step-by-step explanation:

1. the cylinder is a. 54

2.   a.108 /

are ya tryin to ask something or is this a statement

let x and 400 - x be the two numbers.  

==> 0.80x + 0.85(400 - x) = 400 - 68 from the statement of the problem.  

< ==> 0.80x + 0.85(400 - x) = 400 - 68  

==> 340 - 0.05x = 332  

< ==> -0.05x = -8 ==> x = 160, the first number ==> 400 - x = 240, the second number.