It actually says additional hours, but because it is not a choice here, it is 28 hours!
Actually, the real answer is "NO, BECAUSE GROUP B SHOULD BE THE CONTROL GROUP". Since Yvonne gave the flea medication to the group A, and we need a control group. If you don't know what it's the control group, it's the group that they don't put the experiment on, just to see if the group(s) being experimented, had any positive or negative changes. In a short summary they need group B to stay like they are to compare it to the experimented group (group A)
Good Luck!
Answer:402325.6
Step-by-step explanation:
let a be the total sales till date
8.6% of a=34600
8.6/100 x a=34600
0.086 x a=34600
divide both sides by 0.086
(0.086 x a)/0.086=34600/0.086
a=402325.6
32 slices of pizza. This is cuz 4*8=32