Answer:
r= 1r- eR = r
Step-by-step explanation:
r-r = ER final answer to equal r= -ER
Answer:
y = -2x - 3
Step-by-step explanation:
So the ratios are 5:5 and 3:5 so the fractions are 5/10 (1/2) for 7th grade and 5/8 for 8th grade
The formula for an infinite geometric sequence is the following:

Just substitute the values of

and r into the formula.



Therefore, the answer is 20.