Charles has $84.50 that he can spend on music and membership for a music website. If the cost of membership is $35 and each song is 99 cents, how many songs can Charles buy?​

Is the square root of 4 plus the square root of 16 rational?

The ratios 3: 9, 4: 12, 5: 15, and 6: 18 are a pattern of equivalent ratios in the ratio table. which is another ratio in this pattern?

Thompson and thompson is a steel bolts manufacturing company. their current steel bolts have a mean diameter of 127 millimeters, and a variance of 36. if a random sample of 35 steel bolts is selected, what is the probability that the sample mean would differ from the population mean by greater than 0.5 millimeters? round your answer to four decimal places.