The temperature dropped 5 degrees everyday for a week. how many degrees did the temperature change? write an equation with a variable.

Which is the most efficient first step to solve x in the equation 3.7x - 18 = -4.3x -34 a. add 3.7x to both sides of the equation. b. add 4.3x to both sides of the equation. c. subtract 18 from both sides of the equation. d. subtract 34 from both sides of the equation.

The area of a rectangle is 54x^9y^8 square yards.if the length of the rectangle is 6x^3y^4 yards,which expression represents the width of the rectangle in yards

The given diagram shows the parts of a right triangle with an altitude to the hypotenuse. using the two given  measures, find the other four.