Answer:
2:5
Step-by-step explanation:
david=24mins
mark = 1hour
change 1 hour to mins
DAVID=24
MARK=60
24:60
THEN SIMPLIFY
24/60
<em>=</em><em>2</em><em>/</em><em>5</em>
<em><u>2</u></em><em><u>:</u></em><em><u>5</u></em>
5
Special triangle. 1:1:
Explanation:
first term, a₁ = 1
difference between the terms: -3
<u>where "a₁ is first term" and "r refers to common difference"</u>
15-7=8
you will have to use inverse operation