A 7/4 because the slope of the line is 7/4
Answer:

Step-by-step explanation:
Height doubles at every 30 seconds, so let's call n how many times it happens, and the t the total time:
n = t/30
If the height doubles one time, it is multiplied by 2, if it doubles 2 times, it's multiplied by 2², for n times, it is multiplied by 2ⁿ, so for an initial height equal to 3:

Answer:
11/25
Step-by-step explanation:
Reciprocal is the fraction flipped
Answer:
X will be -2
Step-by-step explanation:
Divide each side by factors that don't contain the variable
Answer:5π/12
Step-by-step explanation:
180°=π
75°=x
x=75π ➗ 180
x=5π/12