Answer:
1 to 1
Step-by-step explanation:
function f in more than one point, then the function is 1 to 1
Yes square meters is a type of surface area.
11. 375x0.1425 = 53.475 (53.44 to 2 d.p.)
12. 116 / (9+7) = $7.25
Total payment / Hours spent working = Money per hour