Simplify by combining like terms: 3x + 3x + 3x

a)
3x3

b)
9x

c)
9x2

d)
27x3

Ricardo ran the 400 meter race 3 times his fastest time was 54.3 seconds his slowest time was 56.1 seconds if his average time was 55.0 seconds what was his time for the third race

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 measure angle 1 and measure angle 3 in the kite the diagram is not drawn on the scale