84
Seven squared times two cubed is equal to 392.
2 1/3
6 with a remainder of 2. 3 goes into 21 seven times.
3/7 times 2/3 = 2/7
2 - x 7 = 35 3
2 2/3 x 2 3/4 = seven and one third.
46/8 = 5 and 3/4
7/8 x 8 is seven.
You're just adding another seven to 14. 3 x 7 = 21
2 x 2 x 2 x 3 x 3 = 72
2*2*2*3=4*2*3=8*3=24
21