Answer:
34.3
Step-by-step explanation:
To multiply just convert the 49 into a decimal like this -> 49.0 x 0.7 = 34.3
the answer for 2 is 10, 4 is 20, 15 is 3
Explanation:
1:5=1x5
2:10=2x5 and so on
-1/4(-8x+12y)
-1*(-8x+12y)/4
8x-12y/4
4(2x-3y)/4(4 and 4 gets cancel)
2x-3y
