A student can choose a computer project from one of three lists. The three lists contain 27, 14, and 18 possible projects. No project is on more than one list. How many possible projects are there to choose from

The correct answer is 59.

Step-by-step explanation:

A student has to choose a computer project from on of the three lists. Each list contains 27, 14, and 18 possible project.

The student has to choose from these given projects. Given that there is no project in more than one list, This implies all projects in the three given lists are different from each other. The number of possible projects for the student to choose from is the sum of all the possible projects in the three list. This is equal to 27 + 14 + 18 = 59.

Thus there are 59 different projects in the three lists for the student to choose from.

because linear equations are a lot simpler than quadratics equations, and linear equations formula is a lot easier to memorize. that's why i think they're harder.