Which expressions are polynomials

a. - 7x^2 + 5/3x

b. 6x^2 + 5x

c. x^2 + 5x^1/5

d. - x^2 + 5x

What is the whole number of 138.006

Which is a classification of 18

A rhino can run at speeds of about 28 miles per hour. What is that speed in feet per second, to the neasrt whole number?

A sound wave travels equal distances through air, water, and aluminum. Which medium will it move through in the shortest time? A. The time will be the same. B. Aluminum C. Air D. Water

If two sets of data have the same range and same mean, then they have the same mode. determine whether this statement i sometimes, always. or never. provide evidence.

Lin bought 3 hats for $22.50. At this rate, how many hats could she buy with $60.00?

You are playing tug-of-war in gym class. At the start, you take two steps back. The other team pulls, and you take three steps forward. Which expression can be used to find how far you are from your original position?

at an amusement park, rides cost $3. there is also a $5 entrance fee to get in the park. if Jessica has $25 total to spend at the park, how many rides can she go on? write an inequality to represent this solution and solve.

Write an expression with four terms containing the coefficients 3,6, and 9

The graph shows how many centimeters above a table top, y, a painted spot on an automated hamster wheel is for a given number of seconds x. How many degrees is the painted spot turning in 0.75 s? Enter your answer in the box.?