How many 0s are in the product of 4x100? 4x1,000? 4x10,000? how do you know

in 4*100 there are 2 as there are 2 zeros in 100

3 as there are 3 zeros in 1000

4 as there are 4 zeros in 10000

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