If (5x- 4,12)=(20,2y+1) find x and y linear equation in two variables

Select all the correct statements. the amount in dollars an electrician charges in terms of the number of hours worked is represented by the function y = 22x + 42. from the function, identify all the phrases that hold true for the situation. the electrician charges an initial fee of $22 the y-variable represents the number of hours the electrician charges an initial fee of $42 the electrician charges $22 for every hour worked the x-variable represents the electricians charges in dollars the electrician charges $42 for every hour worked

In the diagram below, tan θ = sqrt 3. what is the value of m?

What is the simplified form of (3.25x10^3)(7.8x10^6) written in scientific notation?