Value of x is
a 10
b 100
c 10 radical 2
d none of the above

The value of x is staring at you in the given hypotenuse.

Each leg = x

Hypotenuse = x•sqrt{2} = 100•sqrt{2}

So, x = 100

step-by-step explanation:

yes

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