Angelica is buying 5 tickets to the school musical. tickets cost $7 each. if c represents angelica's total cost for tickets, which equation below is correct?

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?

!! 10 ! a westbound jet leaves central airport traveling 635 miles per hour. at the same time, an eastbound plane departs at 325 miles per hour. in how many hours will the planes be 1900 miles apart?

The width of a rectangle is 20 units. can the perimeter p of the rectangle be 64 units when its length x is 11 units? no, because p = 2x + 2(20) no, because p ≠ 2x + 2(20) yes, because p ≠ 2x + 2(20) yes, because p = 2x + 2(20)