Eric bough 2 boxes of candy, 1 bag of popcorn and 1 bottle water. The sales
tax for this order is $1.85. Eric gives the
cashier a $20 bill.
Item
Candy
Popcorn
Soda or water
Pickle
Price
$3.50
$3.75
$2.50
$1.75
How much change should Eric receive if
he paid with a $20 bill?

answer: i think it is (1,-2)

hello from mrbilldoesmath!

answer:

the domain is the set { -2, 0, 2, 3}

discussion:

the domain is the set of x values in the ordered pairs (x,y). taking the x, or first component, of each ordered pair gives   -2, 0, 2, 3.

you,

mrb

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,

3

step-by-step explanation: