Answer:
let required no be x

by doing crisscrossed multiplication

42=7x
dividing both side by 7

6=x
therefore x=6
therefore value of remaining no.is 6
Answer:
4/15
Step-by-step explanation:
40% is the same as .4.
.4 x 75 = 30
1/3 x 75 = 25
30 + 25 = 55
75 - 55 = 20
20 / 75
Simplify. Divide by 5.
4/15
I have completed the 1st one and have attached it.
Answer:
85
Step-by-step explanation:
10x13=130, 9x5=45, 130-45=85
Answer:
A.
Step-by-step explanation:
I believe it's A. Hope this helps.