Susan and Bob went shopping at the grocery store. Susan bought 2 packages of brownies and 3 packages of cookies for a total cost of $21. Bob bought 5 packages of
brownies and 2 packages of cookies for a total cost of $25. Find the cost of a package of
brownies and a package of cookies. Show all work.

answer: bearing in mind that a rectangle has a perimeter of length + length + width + width.

step-by-step explanation:

p = perimeter

l = length

x=width

p = 2l + 2x

p = 2(l+x)     < ==== perimeter of the base of the box.

i will u if u answer my question in math

for this case we have that by definition, the surface area of a cylinder is given by:

where:

r: it is the radius of the cylinder

h: it is the height of the cylinder

we can also rewrite it as:

where:

la: it's the lateral area

ba: area of the base

option a

add 8+12 to get a simplified answer of 12r-20