Find the solution set for the open sentence with the given replacement set.
2x + 7 = 19, {4, 5, 6, 7}

Which expression gives the area of the triangle shown below

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

How many different three-digit numbers can be formed using the digits 1 comma 2 comma 9 comma 6 comma 4 comma 3 comma and 8 without repetition? for example, 664 is not allowed.