Alana buys one shirt with a regular price of p dollars and 2 sweaters with a regular price of s dollars. shes uses a coupon so that she pays only half the regular price. write an expression that shows how much money alana spends in all. then exlpain the expression.

c = ½(p + 2s)

Step-by-step explanation:

 Let c = the total cost

       p = cost of one shirt

     2s = cost of two sweaters

p + 2s = total cost before discount

But Alana paid only half the regular price, so

c = ½(p + 2s)

trapezoid

step-by-step explanation:

first i plotted all my points on a grid graph

i made sure all of them were in the correct quadrant

then i saw it was a trapezoid or a quadrilateral

answer:

it is general formula that is used to write value to its excet position

a11 a12 a13

a21 a22 a23

it is the example of order 2 by 3 matrix in this

a11 means value occur in 1 st row 1st column

a12 means value occurs in 1st row 2nd column

a13 means value occur in 1st row and 3rd column

a21 means value occurs in 2nd row and 1st column

a22 means value occurs in 2nd row and in 2nd column

a23 means value occurs in 2nd row and in 3rd column