1. 20 is the answer for it
Answer: x=25.6
Step-by-step explanation:Look at pic to see how it is solved.
Times 6.4 on both sides which gives you 25.6 .
D is the answer for this one as well
A trapezoid is defined as a quadrilateral with only 1 pair of parallel sides. Since your Quadrilateral has 2 pairs, it can't be a trapezoid.
When you multiply powers, you add them. You keep the constant (2) the same.
3+18= 21
2^21 <=== the answer
“D” is the answer.
I hope this helps!
~kaikers