Which situation can be represented by this equation? 12x + 20 = 32

Shane planted a shrub that was 20 inches tall.  

If the shrub grows at a rate of 12 inch per week, how many weeks, x, will it take for the shrub to grow to a height of 32 inches?

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