Leda and thanh both offer piano lessons. leda charges an initial fee of $8.50 and an hourly rate of of $11. thanh charges an initial fee of $10.00 and an hour rate of $10.50. at how many hours of instruction will the price for each instructor to be the same? a. 2 hours b. 3 hours c. 20 hours d. 30 hours

An energy drink company claims that its product increases students' memory levels. to support its claims, the company issues advertisements claiming that 8 out of 10 people (chosen randomly from across the country) who tried their product reported improved memory. the missing component in this study is a .

You and a friend went to the movies.you spent half your money on tickets. then you spent 1/4 of the money on popcorn, $2 on candy, and $3 on a soda. if you have $1 left, hiw much money did u take to the movies?

Many newspapers carry a certain puzzle in which the reader must unscramble letters to form words. how many ways can the letters of emdangl be arranged? identify the correct unscrambling, then determine the probability of getting that result by randomly selecting one arrangement of the given letters.