If a + 4b = 33 and 6a + 3b = 51, what is the value of a + b?

(I got 5 but it was wrong)

Marc spent 1/4 of his monthly budget on food and 3/5 of his monthly budget on gasoline he spent a total of 272$ on food and gasoline what was his monthly budget

Liliana takes 4 breaths per 10 seconds during yoga. At this rate, about how many breaths would liliana take in 2 minutes of yoga

Josh is watering his plants. He gives each of 2 plants 3/5 pint of water. His watering can holds 1/5 pint. How many times will he fill his watering can to water both plants?

A cylinder is 8.2 inches high and has a diameter of 8.2 inches. Find the volume to the nearest tenth. Use 3.14 for pie

What's the answer for 28/32

If you add a constraint to an optimization model, and the previously optimal solution satisfies the new constraint, will this solution still be optimal with the new constraint added?

These are the first six terms of a sequence with a1= - 3: - 3, 8, 19, 30, 41, 52, ... Find a recursive formula for this sequence that is valid for n>1. Write your answer in simplest form.

180 people filled out a survey about their favorite color. 95 of the respondents were female. 21 males responded that their favorite color is red.

Kristin's three-year old sister is trying to arrange pink and red Starbursts in rows. She has 360 pink Starbursts and 150 red Starbursts.

A plane is flying at 31,348 feet. It needs to rise to 37,000 feet in two stages. In stage 1, it rises 5% of its initial altitude of 31,348 feet. In stage 2, it rises at a rate of 140.3 feet per minute.