Me with these two 9th grade math questions!
1) what is the common ratio of the geometric sequence: -1/12,-1/2,-3,-
a) -1/6
b) -6
c) 1/6
d) 6
2) in the first hour of an experiment, the temperature of a liquid was 4.5°c. then the temperature was raised by 0.25°c every hour after that.
in what hour was the temperature of the liquid equal to 22.25°c?
a) hour 69
b) hour 70
c) hour 71
d) hour 72

The first one is D because it's being multiplied by 6 each time. The pattern of negative and positive numbers doesn't occur so any negative numbers are taken out and if it was multiplied by 1/6 the denominator would be getting larger each time it was multiplied.

The second one is C, 71 multiplied by .25 equals 17.75. Which is the difference between 22.25 and 4.5.

66.666666667%

step-by-step explanation:

divide 150 by 100

divide 100 by 1.5

there you go!

decreased by 33.333333334%

table a is wierd

step-by-step explanation:

6*f