Find the value of 3x if x=12

A dvd box set includes 3 thriller movies and 2 comedies use T to represent the cost of each triller and C to represent each comedy write and simplify an expression that represents the total cost of 6 box sets

the sum of two numbers, x and y, is 142. their difference is 14. which system of equations could be used to find the numbers?

What is the definition of fractions

What is the length of segment TQ?

Describe the end behavior of the graph of g (x) = 3x^2-2x

Two angles are complementary. The first angle measures 35 Percent. What's the measurement of the second angle?

What's the difference between 63789 and 69123

Factoriser 1-9x²-y²-6xy

A baseball team has a goal of hitting more than 56 home runs this season. They average 4 home runs each game and have already hit 20 home runs so far.

Alan thinks of a number. he squares it, then takes away 5, next multiplies it by 4, takes away 7, divides it by 3 and finally adds 6. his answer is 9. what number did he start with? 1 2 3 4 5 6