Which expression represents the phrase "twice the sum of a number and three"?

2n + 3

2 + (2n+3)

2 (2n-3)

2 (n+3)

A warehouse store sells 5.5 Oz cans of tuna in packages of 6. A package of six cans cost $9.24. the store also sells 6.5 Oz cans of the same tuna in packages of 3 cans for $4.68. It also sells 3.5 ounce cans in packages of 4 Cans For $4.48.

Find comp f (x) = 2x + 3 g (x) = x2 - 3x + 1 Write g (f (x)) as an expression in terms of x.

Brandy wants to buy a digital that cost $300. Suppose she saves $15 each week. In how many weeks will she have enough money for the camera? Use a bar diagram to solve arithmetically. Then use an equation to solve algebraically

Find the average value of the function f (x, y, z) = 5x2z 5y2z over the region enclosed by the paraboloid z = 4 - x2 - y2 and the plane z = 0.

Leo, Kush and Mai share some money in the ratio 3:5:8 Kush receives £750 more than Leo. Calculate total amount of money that they shared.

Which expression is equivalent to 5x + 5x? 25x 10 + 2x 25x2 10x

286,489 Is an odd number. How many times greater Is the 8 In the ten thousands place than the 8 In the tens place?

A book sold 31,100 copies in its first month of release. Suppose this represents 7.8% of the number of copies sold to date. How many copies have been sold to date? Round your answer to the nearest whole number.

If x2 - 4 = 45, then x could be equal to

Tyra will flip red and yellow counter and spin a spinner labeled A-E. If Tyra flips the counter and spins the spinner, then list only the outcomes in which a red counter and a vowel are spun