Is 3x a variable or constant

A variable.

Step-by-step explanation:

In 3x, 3 is constant and x is a variable but together, 3x is a variable.

variable

Step-by-step explanation:

In 9y, 9 is a constant and a is y variable.

In -7ht, -7 is a constant and h and t are variables.

In 3x, 3 is constant and x is variable but together 3x is a variable.

step-by-step explanation:

the true statements are:

r = set of real numbers

n = set of natural numbers, 1,2,

w = n u{0} = {0,1,}

if farmer matt works for 8 hours a day, how many days will it take him to completely plant 12 rows of crops? each batch of cookies needs 3/4 cups of sugar.

step-by-step explanation: