Please help with this question will give brainliest.

A=9in,b =9in

Step-by-step explanation:

This is a right angled triangle

Formula = a2×b2=c2 (ie sq of both adj sides equals the sq of the longest side)

So, a2 × b2 = c2

But both sides are equal, so we can as well say 2(a2) = (9|2)^2

2a^2 = 162

Divide through by 2

A^2 = 81

So, a = |81

A = 9

And since both sides are equal, a = b = 9

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