Answer:

Step-by-step explanation:
Objective: Use the rules of Algebra to isolate y.




Complementary angles add up to 90 degrees.
The complement of 57 is (90 - 57) = 33 degrees.
Answer:
125
Step-by-step explanation:
a+b+c=-1
a=1
b=-1
c=-1
So for this u just replace the letters
not sure about x+y=7
10+15=25
25+45=70
One lawn will be 10 without the bonus plus the bonus its $25 then $45 for doing the flower beds her total is $70