Are the following ratios proportional?

5:8 and 25:40

a) Yes

b) No

Write two and seventeen thousandths as a decimal number.

Find the nth degree polynomial function with real coefficients satisfying the given conditions. n=3; - 2 and 2+3i are zeros; leading coefficient is 1.

How to add and subtract radical expressions

Solve the equation. - 8 (1-g) = 56

Charles made a business trip of 282 miles. he averaged 63mph for the first part of the trip and 52mph for the second part. if the trip took 5 hours, how long did he travel at each rate

Simplify the complex fraction 24/3 11/8

Write 5,000,039 in scientific notation. a) 0.5000039 x 10^-7 b) 5.000039 x 10^-6 c) 5.000039 x 10^6 d) 0.5000039 x 10^7

Barry knows that 6+5=11 what other addition fact does he know?

If x=2 y=9 and z=-5 what is 2 (y+z) (y+z) 3 and (x+y) 2

Which shows a way to take apart 8? 9-9=0 or 9-8=1 or 8-1=7 or 8+8=16 which one