If the rate of the boat in still Water 18mph, and the rate of the current
of a river is x mph, what is the rate or
the boat in each case?

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

step-by-step explanation:

circumference divided by 3.141592654 then timesthe radius twice

need more info

step-by-step explanation:

what do you mean by "representation"? graph? table? etc.

the answer is  

a.

28 ft2

step-by-step explanation: