Find the area of the parallelogram

I'm trying to find the area of a parallelogram but I forgot the formula

Find x of measure 1 is 2x+10 and measure 2 is 3x-6

Finding the original price : the school bought books for the library and paid $970 for them at 3% discount. How much would the books have cost with out the discount?

Carlos practices piano every Monday, Wednesday, and Friday for 35 minutes each day. He also practices guitar every Tuesday, Thursday, and Saturday for 30 minutes each day. How many hours does Carlos spend practicing musical instruments each week?

Burger King sells burgers for $3.50 per burger. On Fridays, you can buy 2 burgers and get 1 free. They sold 500 burgers in 1 week. How much money does Burger King earn total in 1 week?

What is the answer to this problem? (15) 18+89*56/7=?

Describe a situation in which there would be a positive association between two variables.

One angle of a triangle measures 34. A second angle measures 81. What is the measure of the third angle of the triangle? A: 65 B: 99 C: 115 D: 146

What are the x and y intercepts of the equation x=-5?

Find the solution of the system of equations - 3x+8y=-5 and 6x+2y=-8

Use the discriminant to determine how many real number solutions exist for the quadratic equation - 4j2 + 3j - 28 = 0. A. 3 B. 2 C. 0 D. 1