Climbing at an indoor rock-climbing gym costs $8 per hour. lizbeth has a $30 gift card to spend at the gym. write an algebraic expression for the dollar amount lizbeth will have left on the card after she spends h hours climbing. can lizbeth climb for 4.5 hours using only her card? explain how you know.

Plz need answer now will mark which situations represent linear functions? check all that apply. a)the temperature rises and falls over the course of a day. temperature is a function of time. b)a baseball is hit into the outfield. the height of the ball is a function of time. c)a car goes 55 mph on the highway. distance is a function of time. d)a child grew 2 inches this year and 1 inch last year. height is a function of time. e)a movie director makes 2 movies per year. the number of movies is a function of the years.

This graph shows which inequality? a ≤ –3 a > –3 a ≥ –3 a < –3

The measures of two supplementary angles are (2x + 10)° and (8x + 10)°. what is the measure of the larger angle? a. 16° b. 44° c. 14° d. 138°