f(x)=-2+ square root x+7 find domain and rangea. the domain is x≥−7 , and the range is f(x)≥−2 .
b. the domain is x≥7 , and the range is f(x)≥−2 .
c. the domain is x≥−7 , and the range is all real numbers.
d. the domain is x≥−7 , and the range is f(x)≥2 .

Television sizes are based on the length of the diagonal of the television's rectangular screen. so, for example, a 70-inch television is a television having a diagonal screen length of 70 inches. if a 70 inch television's diagonal forms a 29°angle with the base of the screen, what is the vertical height (1) of the screen to the nearest inch? 70 inhin

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?

At the county fair, the baxter family bought 6 hot dogs and 4 juice drinks for $12.90. the farley family bought 3 hot dogs and 4 juice drinks for $8.55. find the price of a hot dog and the price of a juice drink.