Answer: The required cost of the apples altogether is $3.54.
Step-by-step explanation: Given that Gina bought 2.3 pounds of red apples and 2.42 pounds of green apples.there were on sale for 0.75 a pound.
We are to find the cost of the apples altogether.
Total quantity of apples bought by Gina is
Q = (2.3 + 2.42) pounds = 4.72 pounds.
The cost of 1 pound of apple = $ 0.75.
Therefore, the cost of 4.72 pounds of apple is given by
$ (4.72 × 0.75) = $ 3.54.
Thus, the required cost of the apples altogether is $3.54.