Amaya enters a competition to guess how many candies are in a jar. Amaya’s guess is 115 candies. The actual number of candies is 125. What is the percent error of Amaya’s guess?

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

a = 3.14

b = 18

c = 18/5 or 3.6 or 3 3/5

step-by-step explanation: