Answer:
ask an adult, about the situation
Step-by-step explanation:
Answer:
let the number be x
(5x-3) + (x+9)=24
6x +6= 24
6x=18
x=3
The number is 3
Step-by-step explanation:
Answer:
2 50 mL bottles
Step-by-step explanation:
Find the cost per mL
55 / 80 mL =.6875 per mL
Now find the price of the buy one get one 1/2 off
45 + 1/2 (45) = 45+22.5=67.5
That will be for 50+50 mL
67.5 /100 ml =.675 per mL
The 100 mL is a better deal