(3/5) : (15/6) ===> (3/5) X (6/15) = 18/75 =6/25
22 x 85 = (20+2)*85= 20*85+ 2*85 = 1700 + 170 = 1870
Answer:
5x-4y+5=0.
Step-by-step explanation:
1) if the point A(-5;-5) and B(3;5), the formula is:

2) according to the formula above:

or 5x-4y+5=0.
Answer:
Step-by-step explanation:
<u>Sum of n terms formula:</u>
<u>Solving for n</u>
- 3480 = 1/2n(9 + 165)
- 3480 = 87n
- n = 3480/87
- n = 40