What expression represents the phrase the cost of a pounds of apples at $1.69 per pound

When using the linear combination metho e linear combination method to solve a system of linear equations, the four options are:

What is the y-intercept of the line with the equation 3x + 4y = 12?

How do you find p(a and b) if a and b are independent events for two or more actions, such as tossing a coin twice and finding p(heads and heads)? 2. how do you find p(a or b) if a and b are independent events for one action, such as spinning a four-color spinner once and finding p(red or blue)?