Find the value of x if the area of the triangle is 357 in2.
a. 21 in
b. 10.5 in
c. 5.25 in
d. 42 in

Find the area of a parallelogram with base 15 yards and height 21 2/3

Asquare has a side that measures 11 units. what is the area of a circle with a circumference that equals the perimeter of the square? use 3.14 for π, and round your answer to the nearest hundredth. 1519.76 units2 379.94 units2 616.56 units2 154.14 units2

Tim's phone service charges $26.39 plus an additional $0.21 for each text message sent per month. if tim's phone bill was $31.64, which equation could be used to find how many text messages, x, tim sent last month?