First you get figure out that Tara must have 1/3 of the shells from the other two ratios. Then you learn that 76 is 1/3 of the shells, therefore there must be 76*3 or 228 shells total.
Step-by-step explanation:
To find out first
We will divide 2400 ÷ 48 = 50
Then 50 x 3.84 = 192
Y=24x+48
24 per hour (x) plus the 48 she already made would equal a total (y).