Answer:
(1;3)
Step-by-step explanation:
midpoint=(x1+x2;y1+y2)÷2
=(-2+4;-3+9)÷2
=(2;6)÷2
=(1;3)
The measure of angle DEH
commercial angle FEH
9.5% increase
2/21 x 100
.095 × 100
9.5%
hope this helps you