Forgive me if this is wrong. I haven't done stat in a year, but comment if you need clarification!
They give us the length of side of the square which is 3-7x.
To get an expression for the perimeter that is expressed as a product we have to multiply the expression 3-7x by four since every square has four sides. This will give us an expression of 4(3-7x). We than can use the distributive property to multiply everything inside the parenthesis by 4. This will give us an expression of 12-28x.
Answer:
6.6 inches
Step-by-step explanation:
1.) It's a parallelogram
area:
3.5 x 5.8 = 20.3
perimeter:
4 + 4 + 5.8+5.8 = 19.6
2.)It's a right triangle
<span> area:
</span> (6.92 x 11) ÷ 2 = 38.06
<span> perimeter:
</span> 6.92 + 11 + 13 = 30.96
3.) ...that looks like a square tbh xD
<span>area:
</span>4.4 x 3 = 13.2
<span>perimeter:
</span>2.4
4.) Trapezoid