Solve for x: 2x-5=49

Of 1414 possible books, you plan to take 55 with you on vacation. how many different collections of 55 books can you take?

10x-4y=-20 and 8+6y=14

You use a line of best fit for a set of data to make a prediction about and unknown value. The correlation coefficient for your data set is 0.109. How confident can you be that your predicted value will be reasonably close to the actual value? A.

Where is the number 3 - 6 located on a horizontal number line? 3 units to the left of 3 3 units to the right of 3 6 units to the right of 3 6 units to the left of 3

if a car travels at a speed of 25 mi/h for t hours, then travels 45 mi/h for m hours, what dose the expression 25t + 45m represent?

A rectangle contains 17 identical grey squares and in the whole rectangle there are 50 squares what percent is the rectangle shaded

Is 18 a polynomial? Explain your reasoning

Simplify the next two expressions 1. 2x + 5 (3x - 2) - 10x - 30 2. 10x - 23 + 40y + 23 - 10 - 2x - 10y

Rita has a collection of 96 coins consisting of nickels, dimes, and quarters. The number of dimes is 2 more than one third the number of nickels, and the number of quarters is twice the number of dimes.

If the scale used on the blue print is 2in = 3ft. what is the measure of the door that is 5in on the blue