A breeder sold half of his horses, then another two. He then sold half of his remaining horses, then another two. He then had his one favorite horse left. How many horses did he have initially?

18

Step-by-step explanation:

solve by going backwards.

1+2, then doubled, +2, doubled.

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

10cm

step-by-step explanation:

ik