Well first off those numbers add up to 163.
A way to check this is to add 52 with 23 which is 75 then add 78 by 10 which is 88 now add 75 with 88 which is 163
In this question, you know that the machine packs
of a box every
of a minute. Since it is constant, you simply have to double the half a minute to a full minute and then also double the rate to get
boxes packed per minute. And
is equal to
7=x/2+3
3 more means +3
quotient equals divide
is equals ==
Answer:
4×(-3)=12,3×(-1)=-3;+3,c=-2