Which is another way to write 7 × 10 = 70? a. 70 = 2 × 7 × 5 b. 70 = 2 × 7 × 10 c. 70 = 3 × 5 × 5 d. 70 = 3 × 4 × 10

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value

4 and 5)16.97 or 12√2

6)15.59 or 9√3

7)y = 15.59 or 9√3     x =27

8)17.80