Jeffrey is a kickboxing instructor who will be teaching classes at a local gym. to get certified
as an instructor, he spent a total of $200. jeffrey will be earning a base salary of $50 per
month from the gym, plus an additional $3 for every class he teaches. if jeffrey teaches a
certain number of classes during his first month as an instructor, he will earn back the
amount he spent on certification. how many classes will that take?

When eating out, record the total cost of your meal (before tip) and the tip that you left. determine the percent of the cost of the meal that you left as a tip.

The edge of a cube was found to be 30 cm with a possible error in measurement of 0.4 cm. use differentials to estimate the maximum possible error, relative error, and percentage error in computing the volume of the cube and the surface area of the cube. (round your answers to four decimal places.) (a) the volume of the cube maximum possible error cm3 relative error percentage error % (b) the surface area of the cube maximum possible error cm2 relative error percentage error %

Is triangle jkl congruent to triangle rst? if so, what is the scale factor?