) The cost of the fencing for Mary's yard is $2.99 per ft. The dimensions of the yard are
28 ft. by 40 ft. What is the cost of fencing
Mary's yard?
a) $3,348.80
b) $306.46
c) $203.32
d) $406.64

the answer would be 44.79

plz mark brainliest

step-by-step explanation:

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.