1) Would be c+15 because you can combine 19-4
2) Would be m+2 because you can combine 12-10
there is no inverse though
Answer:
y = w/4x+1
Step-by-step explanation:
In this problem, we are asked to give an expression that can be used to mentally multiply 6 and 198. In order not to go through the rigorous multiplication, we can estimate 198 to 200, that is 6 *200 equal to 1200. Since there is a 2*6 excess or 12 then we subtract: 1200 -12 equal to 1188.