What’s the answer to thus

Marcus needs to rewrite f(x) = x2 + 6x + 4 in vertex form.

Acar travels at an average speed of 56 miles per hour. how long does it take to travel 196 miles

Jose predicted that he would sell 48 umbrellas. he actually sold 72 umbrellas. what are the values of a and b in the table below? round to the nearest tenth if necessary