Charles will babysit for up to 4 hours and charges $7 per hour. write a function in function notation for this situation.

Find parametric equations for the line tangent to the curve of intersection of the surfaces at the given point. surfaces: xsquared2plus+2yplus+2zequals=1212 yequals=33 point: left parenthesis 1 comma 3 comma five halves right parenthesis

Sole with work in 10 years, the average number of hours of tv watched per week by teenagers dropped from 23.9 to 21.4. find the percent of change.

65% of students in your school participate in at least one after school activity. if there are 980 students in you school, how many do not participate in an after school activity?