Answer:-78
Step-by-step explanation:
Answer: 4950
Step-by-step explanation:
The number of possible combinations of n things taken r at a time is given by :-

Total nonnegative integers less than 100 ={0,1,2,... ,99} = 100
So, the number of combinations of choosing 2 out of them = 
So, the number of ways to choose a set of two nonnegative integers less than 100 = 4950
Step-by-step explanation:
price difference= $45-$36
=$9
now,
x% of $45=$9
or, x/100 ×45 =9
or, x/20 ×9=9
or, x/20=1
therefore, x= 20%
Answer:
Step-by-step explanation:
Area of the blue shaded region

Your answer is C, <span>y+8=3(x+1)</span>