Add or subtract each fraction

2 + 15/8

If you roll two fair dice (one black die and one white die), in how many ways can you obtain a 4 on at least one die?

Write the equation in logarithmic form m^x=n

According to a study conducted in 2015, 18% of shoppers said that they prefer to buy generic instead of name-brand products. suppose that in a recent sample of 1500 shoppers, 315 stated that they prefer to buy generic instead of name-brand products. at a 5% significance level, can you conclude that the proportion of all shoppers who currently prefer to buy generic instead of name-brand products is higher than .18? use both the p-value and the critical-value approaches.