I you're looking for the equation, it is

and If you need me to solve it, it is
Answer:
$10.5
Step-by-step explanation:
$42 for 4 basketballs
price of 1 basketball = 42/4
42/4 = 10.5
-Chetan K
The ratio of dates to peanuts is the same as cashews to raisins. Simplified, both ratios equal 1/2.
The answer is D
Hope this helps :)