Francis teaches the piano. he charges each student an enrollment fee of $100 plus $15 per hour of piano lessons. the average cost of lessons for a student per hour is $25.

if h represents the number of hours a student spends in lessons, which equation can be used to find the value of h?

The marriott family bought a new apartment three years ago for $65,000. the apartment is now worth $86,515. assuming a steady rate of growth, what was the yearly rate of appreciation? what is the percent of the yearly rate of appreciation?

Apsychology student wishes to investigate differences in political opinions between business majors and political science majors at her college. she randomly selects 100 students from the 260 business majors and 100 students from the 180 political science majors. does this sampling plan result in a simple random sample? why or why not? no, because each group of 200 students in the sample does not have the same chance of being selected. yes, because each group of 200 students in the sample has the same chance of being selected. no, because each individual student does not have an equal chance of being selected. yes, because each individual student has the same chance of being selected.

Labc is reflected across x = 1 and y = -3. what are the coordinates of the reflection image of a after both reflections?