The diagram below shows a pentagram (a five-pointed star) inscribed inside a regular pentagon. there are several golden ratios in this figure. for example:
and .
this means that if length a = 2, then length b = 3.236. in this case, what is length c?
a.2.618
b.1.618
c.0.618
d.5.236
e.4.236

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