Yumi spent $34.15 buying stamps. the number of 56-cent stamps she bought was 10 less than 4 times the number of 41-cent stamps. how many of each did she buy?

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?

Asix-sided number cube is rolled twice. what is the probability that the first roll is an even numbe and the second roll is a number greater than 4?

3x = 729 solve for x plz . it's urgent. will mark