What is the inverse of f (x) = (1/2) ^x

Write 57% as a ratio. Which part of the ratio represents the part and which part represents the whole? Explain.

If 13y+25=64, what is the value of 4y-7?

Fran would like to estimate the mean amount of time it takes people in her town to travel to work. The town's population is 150,000 and about 90,000 of those are working adults. Which statements are true? Select each correct answer.

Linda purchased a prepaid phone card for $30. Long distance calls cost 13 cents a minute using this card. Linda used her card only once to make a long distance call. If the remaining credit on her card is $25.45, how many minutes did her call last?

A farme planted 38 rows of green beans with 17 plants in each row how many green bean plants did the farme grow

6 lb 4 oz - 5 lb 10 oz =

What is the perimeter of a square with sides that measure 2x + 3 units?

y 2 - y - 2 3 (y - 3) (y + 3) 2. 3y 2 - 27 - 4 (y + 2) (y - 4) 3. y 4 - 16 (y - 6) 2 4. y 2 - 12y + 36 (4y - 3) (y + 2) 5. - 4y 2 + 8y + 32 (y + 1) (y - 2) 6. 5y - 2 + 4y 2 - 4 (y - 2) (y + 2) (y2 + 4)

Solve : - 7 = 2x - 7 x=?

Henry made a total of $125.63 last week and worked a total of 18.25 hours. He divides 125.63 by 18.25 and got 6.88384. What does that number mean?