308 car stereos were recently sold in a car audio store. 112 had a CD player, 115 had a cassette player, and 40 had both a CD and a cassette player. How many had a CD player only

The number of car stereos had a CD player only = 72

Step-by-step explanation:

As per given,

Number of car stereos had CD player = 112

Number of car stereos had both CD and a cassette player= 40

Then, the number of car stereos  had a CD player only = (Number of car stereos had CD player ) -(Number of car stereos had both CD and a cassette player)

= 112- 40

= 72

Hence, The number of car stereos had a CD player only = 72

$4

step-by-step explanation:

$30×5=$150

$150 minus $130=$20

$20÷5=$4.

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