Reggie is deciding when to go bowling with his friends. Friday night is glow-bowling night, with 5 glow-bowling games for $22.50. But the early-bird special on Saturday morning offers
8 games for $30. How much more does glow-bowling cost per game?

glow bowling costs $0.75 more per game

Step-by-step explanation:

1. divide $22.50 by 5 games to find the price per game for glow-bowling, which comes out to $4.50

2. divide $30.00 by 8 games to find the price per game for the early-bird special, which comes out to $3.75

3. subtract $3.75 (early-bird bowling) from $4.50 (glow-bowling) and it = $0.75

4.50-3.75=0.75

the least common denominator is 40

answer: .64

step-by-step explanation

set up the formula for standard deviation for this set of numbers, then simplify