If the sum of a number and seven is doubled, the result is one less than the number. find the number

Jonathon is playing a game on a rectangular board that measures 60cm long and 450 mm wide. What is the perimeter of Jonathan's game board in meters

What is 137% of 720? Round to the nearest hundredth

Elijah spent $5.25 for lunch every day for 5 school days. he spen $6.75 on saturday. How much did he spend in all?

a game, which costs $1 to play consists of drawing a card from a deck of 52 cards. if the card is an ace, you win $5. if the card game is a face card, you win $2. And, if the card is any other card you lose. what is the dealers edge in this game?

What is 75% of 400? Write an evaluate an expression to find the answer. Then explain how to use the model to justify the answer

Samantha has 14 yards of ribbon. She wraps 12 presents and uses 5/6 yards of ribbon to decorate each present. The total amount of the ribbon she used is modeled in rhe diagram below. How much ribbon does samantha have left

Factor completely 2x^3 + 10x^2 + 4x + 20

At a certain industrial manufacturer, an open tank contains 6% fluorine dissolved in water. if the tank holds 1000 gallons, and 10 gallons of the total volume evaporate as water each day, what is the concentration of fluorine after 25 days?

Which of the following is a cost homeowners insurance does not protect

Choose which of the following functions has a domain of all real numbers. Select all that apply. a.) y = x b.) y = 2x2 + x - 3 c.) y = 3x - 4 d.) y = 2 e.) y = 3 - x2