Combinatorics problem! Decent amount of points How many 4-digit decimal numbers have at least a 7, an 8, and an 9? Not an 8,9, or 7, the 4 digit number must contain all 3 in it's digits. Some examples of such numbers are: 9871, 8279, and 5798. Repost cause of trolls...

Arefrigeration system at your company uses temperature sensors fixed to read celsius (°c) values, but the system operators in your control room understand only the fahrenheit scale. you have been asked to make a fahrenheit (°f) label for the high temperature alarm, which is set to ring whenever the system temperature rises above –10°c. what fahrenheit value should you write on the label

Select all expressions that are equivalent to 2(3x + 7y). question 1 options: 6x + 14y 6x + 7y 1(6x + 14y)

What is the slope of the line (-7,2) (4,6)