Let x be the common ratio and y be the 3rd term
11.25/x=y This means the fourth term divided by the common ratio will get the third term
20x=y This means the second term multiplied by the common ratio will get the third term
11.25/x=20x Set the two y's equal to each other, and solve for x!
20x^2=11.25
x^2=.5625
x=+-√.5625
x=.75 or -.75
The answer to number 1 = 40
Answer:
(-1,3)
Step-by-step explanation:
count 9 up
Answer:
C
Step-by-step explanation:
Given that he has sold 40% then he still has to sell (100 - 40)% = 60%
60% of 70
= 
× 70 = 0.6 × 70 = 42 → C
