Simplify 81?

18

9

40.5

-18

Simplify 50?

10

5/2

25/2

50 (it can't be simplified anymore)

The mass of an object is 3.5k what is the mass of the object in grams

Is 54 divided by 6 equal 0.09

If 1 4in represents 5 yd, how long must a drawing be to represent a football field that is 100 yd long?

Find the vertex of the graph of the function. f (x) = (x - 5) ^2 + 10

Examine the quadratic equation 9x^2+24x+16=0. A: What is the discriminant of the quadratic equation? B: Based on the discriminant, which statement about the roots of the quadratic equation is correct?

How do you solve 4y-8x=12

Joe spends $8 on lunch and 6.50 on dry cleaning. He also buys 2 shirts that cost the same amount. Joe spends a total of $52. What is the cost of each shirt?

F=-GMn/D^2 The answer is M = what

Find 4x - y - 2z if x = - 2, y = 3, and z = - 2

What is the value of x in the proportion (x-1) / 5 = (4x+2) / 35