When draining her hot tub, the height of the water in brittany's hot tub decreases at a rate of 2 inches per minute. after 9 minutes there are 11 inches of water in the tub. assume that the height is decreasing at a constant rate. after how many minutes will the tub be empty.

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

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step-by-step explanation:

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