Need help its a practice question

Find E(t) = mt + b so that E models the data, where t is the number of years since 199 Next Question make the requested estimate The life expectancy for a female in 1991 was 79.0 years, and in 1996, it was 79.4 years. Estimate the life expectancy in 1998. The linear function E(t) that fits the data is E(t) = t + (Type integers or decimals. Round to the nearest hundredth as needed.) Use the function part to predict the life expectancy of females in 1998. E(7) = (Type an integer or a decimal. Round to the nearest hundredth as needed.)