A student bought twice as many 10 − cent pens as 15 − cent pens. He also bought as many 20 − cent pens as both of the other two combined. How many of each kind did he get if he paid a total of 190 cents.

The frequency table shows a set of data collected by a doctor for adult patients who were diagnosed with a strain of influenza. patients with influenza age range number of sick patients 25 to 29 30 to 34 35 to 39 40 to 45 which dot plot could represent the same data as the frequency table? patients with flu

Select the point that is a solution to the system of inequalities. y< =-x+3 y=x^(2)-3x

Light travels at 186,000 miles per second. light takes about 1 1? 3 seconds to travel from the earth to the moon. calculate the distance between the earth and the moon based on the speed of light.