The second of two numbers is 3 less than twice the first. Their sum is 36. Find the numbers.

How long does a car traveling at 45 mph take to travel 80 mi in hours?

Find the exact circumference of a circle with diameter equal to 8 ft.

What is an equivalent fraction for 4/12

So I have this exercise and don't know how to approach it: You ask five students to toss a coin 10 times and to report k, the number of times heads faces up in the sequence of ten tosses. The obtained data are displayed in Table 1.

When x = (-4), what is the value of y?

What is the answer to 3n + 3 = 27

The mean of 3 consecutive terms in an arithmetic sequence is 10, and the mean of their squares is 394. What is the largest of the 3 terms?

A race at travels at a rate of 205 mph how far would it travel in 3 hours?

What is 8/20 of an hour

An actor invests some money at 9 % simple interest, and $24,000 more than three times the amount at 10 % simple interest. The total annual interest earned from the investment is $38,670. How much did he invest at each amount? Use the six-step method.