Answer:
m = 68 - c
Step-by-step explanation:
It is given that Tegan needs to make 68 more snow blocks to finish building an igloo.
Let m be the number of blocks Tegan still needs to make and c be the number of completed blocks.
If total number of required block is 68 and c blocks are completed then the remaining blocks is the difference between 68 and c.
Number of blocks Tegan still needs to make = 68 - c
We know that c represent the number of blocks Tegan still needs to make.
m = 68 - c
Therefore, the required equation is m = 68 - c.
