To answer the question above, determine the ratio between the their typing speed by dividing Jennifer's speed by Paul's. This is shown below,
r = 60 words per minute/ 80 words per minute
r = 3 / 4
Therefore, Paul's typing speed is 3/4 of Jennifer's speed. The answer is letter A.
X-intercept can be found when y=0
y-intercept can be found when x=0
Plug in x=0 to find the y-intercept
-3(0) + 4y = -12
4y = -12
y = -3
Plug in y=0 to find the x-intercept
-3x + 4(0) = -12
-3x = -12
x = 4
The x-intercept is (4,0)
The y-intercept is (0, -3)
3 decimeter is the same as 30 centimeters, because 1 decimeter=10 centimeter, so if you convert 3 decimeter into centimeters, you'll get 30, 3×10=30cm
30cm=30cm, so your answer is both are equal.
hope this helps...........