Hello,
to find the total cost (c) of the colored strips we have to multiply the number of strips (n) by the cost of each color strip (99¢), that as an algebraic function is:

[¢]
Now, if we use 3 solid color strips, that means that we use 4 patterned strips, so:
Answer: c=n*99 and Cost per curtain= $7.97
8-3(x+6)
explanation:
it just makes sense lol but also bc “8 decreased by three” means “8 minus 3”
then “times” means “multiply”
then “a sum” means “addition”
then “a number” since we don’t know what a number is then we use “x”
“and” means “addition”
“a number and six” means “x+6”
Answer:
86.5 square inches
Step-by-step explanation:
Area of circle: pi*r^2
10.5in /2= 5.25in
5.25^2=27.5625
27.5625*3.14=86.54625
rounded 86.5 in
She could measure the next length to the left or right and she will have all 4 sides because a rectangle has 2 sets of equal sides.