Answer:
A) 100%; B) 0.517; C) 0.858
Step-by-step explanation:
For part A,
We find the sum of the probabilities:
45.2+16.4+6.5+6.3+4.2+3.7+2.1+15.6 = 100
Since they sum to 100%, this is a probability distribution.
For part B,
We add together the probabilities for the US and Canada:
45.2+6.5 = 51.7% = 51.7/100 = 0.517
For part C,
We first add together the probabilities for Italy, the UK and France:
6.3+4.2+3.7 = 14.2%
Next we subtract this from 100%:
100-14.2 = 85.8% = 85.8/100 = 0.858
Answer: 
Step-by-step explanation:
Given
Laquita has
of fabric i.e.

She used
yards to make a blouse i.e.

Left fabric

X intercept is where the line crosses the x axis or where y=0
y intercept is where the line crosses the y axis or where x=0
x intercept
set y=0
4x-3y=12
4x-3(0)=12
4x=12
divide by 4
x=3
the x intercept is 3
y intercept
set x=0
4x-3y=12
4(0)-3y=12
-3y=12
divide by -3
y=-4
the y intercept is -4
x intercept: 3
y intercept: -4
answer is first one
CBA = 180 - 70 (linear pair)
=110
ACB = 180- (20+110)
= 180-130 = 50