Which of these is a property of acids? A. They produce hydrogen gas when reacted with metals.
B. They feel slippery.
C. They turn litmus paper blue.
D. They taste bitter.

A

Step-by-step explanation:

sour in taste

litmus into red not blue

f(x) is the value of the function. b is the value of the function when x equals zero or the y-coordinate of the point where the line crosses the y-axis in the coordinate plane.

step-by-step explanation:

hope this !

94

step-by-step explanation:

average the numbers and use a variable to figure out the minimum to get a 90.

(79+94+91+92+x)/5=90

x = 94