Can someone please help me out? What's the answer to 4 1/2 plus 3 3/4 ?

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

Drag each expression to the correct location on the solution. not all expressions will be used. consider the polynomial 8x + 2x2 - 20x - 5. factor by grouping to write the polynomial in factored form.

Find cot x if sin x cot x csc x = √2