For a science experiment, ashley removes a cold liquid from a refrigerator and measures its temperature every 1 2 minute. ashley finds that the temperature increases by 1 1 4 degrees fahrenheit (°f) between each measurement for three minutes. what is the rate per minute of the temperature increase? a) 5 8 °f per minute b) 3 4 °f per minute c) 1 3 4 °f per minute d) 2 1 2 °f per minute

Given the system of equations presented here: 2x + 4y = 14 4x + y = 20 which of the following actions creates an equivalent system such that, when combined with the other equation, one of the variables is eliminated? multiply the second equation by â’4 to get â’16x â’ 4y = â’80 multiply the second equation by â’1 to get â’4x â’ y = â’20 multiply the first equation by 2 to get 4x + 8y = 28 multiply the first equation by â’1 to get â’2x â’ 4y = â’14

If 7x=9y, y/z = 7/5 , then x/z = (a) 2/7 (b) 7/9 (c) 9/5 (d) 9/7 (e) 5/9

Asmall book publisher knows that 26 books weigh 41 lbs. how much do 40 books weigh?