Do each one step at a time;
-7 * 2=-14
-14 *-2 =28 because negative multiplied with a negative is a positive
40+20+5+10+30+10+5+20=144
40-20-5-10-30-10-5-20=-60
144-60=84
so 84 is ur answer
Answer:
The answer is C
Step-by-step explanation:
I know this because I worked it out and I am in University
1. 393
2. Abby has about 1,248 in total
3. it can be subtracted 320 times
4. 3,032
5. 27,315
6. 287, then estimate 287x6=1,722
7.
