Bring the two fractions to the same denominator, 10.
2/5 = 4/10
3/10 = 3/10
Add the numerators keeping the denominator the same.
4/10 + 3/10 = 7/10
Answer:

ABC dilated
Step-by-step explanation:
Given
Triangles ABC and DEF
Required
Determine the scale of dilation
First, we pick a side on ABC

Pick a corresponding side on DEF

The scale factor is then calculated as:


i.e. ABC was dilated by 1/2
-3; -1(-2+5) you do the parentheses first so it’s 3 then multiply -1 which equals -3
Acute angle between 0 and 90 degrees I think