If $7000 deposit at the end of every six months into a mutual fund that yields 10% compounded semi annually find the amount after 13 years

It says factor each expression 49x-28?

This is about circle theorems. someone asap : (

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.