Agroup of students went to lunch. the bill before the sales tax and trip was $37.50 a sales tax of 8% was added. the group then tipped 18% on the amount after sales tax was added. what was the amount in dollars of the sale tax

Assume that a population of 50 individuals has the following numbers of genotypes for a gene with two alleles, b and b: bb = 30, bb = 10, and bb = 10. calculate the frequencies of the two alleles in the population’s gene pool.

An initial investment of $100 is now valued at $150. the annual interest rate is 5%, compounded continuously. the equation 100e0.05t = 150 represents the situation, where t is the number of years the money has been invested. about how long has the money been invested? use your calculator and round to the nearest whole number. years

Credit card a offers an introductory apr of 3.4% for the first three months and standard apr of 15.7% thereafter,