Answer:
First question is 810
Second question is 6,064
Third question is 51,841
Fourth question is 764
Fifth question is n x 7
Sixth question is 3/4 equals 1/4 + 1/4 + 1/4
Seventh question is 1/7 + 1/7 + 1/7 + 1/7 + 1/7
Step-by-step explanation:
900/90=10
2486+3578=6064
823*63=51849
3820/5=764
4=28
15=105
3/4=1/4+1/4+1/4
5/7= 1/7+1/7+1/7+1/7+1/7
