What is the equation of the line that passes through (1, 2) and is parallel to the line whose equation is 2x + y - 1 = 0?
2x - y - 4 = 0
2x + y - 4 = 0
2x + y + 4 = 0

The triangles are similar. what is the value of x? show your work.

Will used 20 colored tiles to make a design in art class. 5/20 of his tiles were red. what is an equivalent fraction for the red tiles?

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 33 days later). the pool was open on monday, but it was closed on thursday. the high temperature was 30 ∘c on monday, but decreased at a constant rate in the next 33 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.