Question

someone please send me some Difficult sums in exponent and power for grade 7​

Answer 1

How many cups are in 10 quarts? 
25

30

36

40John starts a saving account with $100. Every week he adds $6 to his account. Which equation can be used to determine the number of weeks w, after which John's accounts reaches $220?
6w + 100 = 220

6w - 100 = 220

6w + 220 = 100

6 + w = 220