Aperfect score in bowling is 300 points. you get a perfect score if you knock down 120 pins in 10 frames. what are the decimal value and the percent of the number of pins knocked down in relation to a perfect score

0.4 ,40%

Step-by-step explanation:

We are given that  

A perfect score in Bowling=300 points

You get know down pins in 10 frames=120

We have to find the decimal value and the percent of the number of pins knocked down in relation to a perfect score.

Number of know down pins to a perfect score=

Number of know down pins to a perfect score=0.4

Hence, the decimal value of the number of pins knocked down in relation to a perfect score=0.4

To find the percentage we will multiply decimal value of  number of know down pins to a perfect score by 100

Number of know down pins to a perfect score=

Number of know down pins to a perfect score=40%

Hence, the percent value of number of know down pins to a perfect score=40%

3.4 pizzas

step-by-step explanation:

given is a scatter plot showing number of pizzas sold during weeks for different issues of coupon

y represents number of pizzas sold and x number of coupons issued

y is marked verticaly and x horizontally

the trend line is given as

y =3.4x+43

this says that even when no coupon is issued pizzas sold will be 43

and rate of change of pizza sold for 1 unit of coupon = slope = 3.4

i.e. when x increases by 1 unit y increases by 3.4 units

hence for each additional coupon issued 3.4 pizzas more will be sold