Answer:
3) B) 90°
4) A) 75°
Step-by-step explanation:
3) interior angles of a triangle =180°
So
40+50+?=180
? =180- 90
? =90
4) same rule
40+65+?=180
? =180 - 105
? = 75
I'm sorry idk how to do it
10% of 13 is 1.3 so 13+1.3= 14.3
Answer:
A- 8/15
Step-by-step explanation:
2/5 ÷ 3/4
= 2 × 4/5 × 3
= 8/15
