How do you do radical expressions? i calculated it but i need to show work i never learned this in algebra

Xto the second power plus 14x plus 48. what are the factors? we are doing factoring trinomials with a=1

Acar travels at an average speed of 52 miles per hour. how long does it take to travel 299 miles

Find the perimeter of the figure shown above. a. 40 cm c. 52 cm b. 60 cm d. 75 cm select the best answer from the choices provided