Arectangle initially has dimensions 6 cm by 7 cm. all sides begin increasing in length at a rate of 4 cm/s. at what rate is the area of the rectangle increasing after 15s?

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

1 is c

2 is a

3 is a

step-by-step explanation:

its adding 5.5 each time

step-by-step explanation: