Which expression is equivalent to 5 (h + 9)?
45 h
14 h
5 h + 9
5 h + 45

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?

Given that abcd is a rhombus, what is the value of x?

Look at the figure below: triangle abc is a right triangle with angle abc equal to 90 degrees. the length of ac is 5 units and the length of ab is 4 units. d is a point above c. triangle adc is a right triangle with angle dac equal to 90 degrees and dc parallel to ab. what is the length, in units, of segment cd?