An equilateral triangle has perimeter 90 in. What is the area of the triangle? How do you solve this problem?

Afurniture store has 1,500 chairs in storage. a manager uses three delivery receipts to simulate samples to check 100 chairs and note the number of brown chairs. suppose the actual number of brown chairs is 1,080. about how many brown chairs are

Will give brainliest what is the value of x? enter your answer in the box.

If square root x = -7, then x= -49 true or false