A) find the value of 2x+y wehn x =4 and y =3 b) find the value of a^2 + b when a = -2 and b = 5

Solution,

a. Given,

X=4

y=3

Now,

b. Given,

a=-2

b=5

Now,

hope this helps...

Good luck on your assignment..

to find the total number of combinations, multiply the quantity of each item by each other:

2 pairs of shoes x 3 pairs of shorts = 6 different combinations.