Question

Ginger adds 15 mL of vitamin C drops to her guinea pig's water everyday. A bottle of vitamin C drops holds 350mL and costs $4.85. About how much does she spend on vitamin C drops each year?

Answer 1

she gives 15ml a day

one bottle contains 350ml,

there are 365 days in a year so it gives 15*365=5475ml

number of bottles: 5475/350=15.64..=16 bottles

cost: 16*$4.85=$77.60

Explanation: