A painting is one third wide as it is long. An expression for the perimeter of the painting is -x + x + x + x
Ix+x
3
3
What is an equivalent expression (simplify) for the perimeter of the painting?

Antonia and carla have an equivalant percentage of green marbles in their bags of marbles. antonia has 4 green marbles and 16 total matbles. if carla has 10 green marbles , how many total marbles does carla have

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 3 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 3 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.

The ratio of the measures of the three angles in a triangle is 2: 9: 4. find the measures of the angels