Second one...................
Let n = minutes since 12:00 pm when Malory catches up to Dori.
Dori travels
(50 steps/min)*(n minutes) = 50n steps
Malory begins walking at 12:20 pm, so she walks for (n - 20) minutes. She travels
(90 steps/min)*(n - 20 min) = 90n - 1800 steps
Equate the steps traveled by Dori and Malory.
90n - 1800 = 50n
40n = 1800
n = 45 min
The time corresponding to n = 45 min is 12:45 pm
Answer: 12:45 pm
8th payment, if you want how to get the answer I made a chart as shown in the picture
Closest one is 4.9cm
✖️multiply
3.141592654....as in in pi with the
radius of 1.25^2to the power of 2
or 1.562 times pi
B= a+4 because let’s say for the first column, b8/a4 it would be 8=4+4 which is true