3 times the sum of 4 and 9:
I’m confused can anybody help me I forgot how to do it?

What set does not contain -3 the set of all real numbers the set of all integers the set of all whole numbers the set of all rational numbers

The price of a visit to the dentist is calculated according to the formula 50+100n50+100n where nn is the number of cavities the dentist finds. on your last visit to the dentist, 22 cavities were found. what was the cost of your visit?

Find the volume of the solid whose base is the region bounded by f(x), g(x) and the x-axis on the interval [0, 1], and whose cross-sections perpendicular to the y-axis are squares. your work must show the integral, but you may use your calculator to evaluate it. give 3 decimal places for your answe