How can I found the multiples of 3 and 7

My locker combination has three digits. None of the digits are 0. What is the probability that the first digit of my locker combination is less than 3? A. 1/3 B. 1/2 C. 2/9 D. 3/10

How to factor 6x^5+9x^3 - 27x

Cynthia earns $680 in commissions and is paid $10.25 per hour. Javier earns $410 in commissions and is paid 12.50 per hour. What will you find if you solve for x in the equation 10.25x + 680 = 12.5x + 410.

Janet has a balance of 125 on a credit card on her next statement she wants to reduce her balance to no more than 60 how much does she need to pay off

Ana is planning to plant roses around the edge of a circular flowerbed having a diameter of 7 feet. If the total cost of planting roses is $176, what is the unit price of planting roses per foot? (Use π=227.)

Luke buys 7 new pencils. Now he has 21 pencils. How many pencils did Luke have at first?

Write an expression to find the amount of simple interest, A, earned on a $600 investment after 1 1/2 years of interest rate is 2%

Use f (x) = 4x and g (x) = x+2 to evaluate each of the following a. (f+g) (6) b. (f-g) (1) c. (ft) (5) d. (f/g) (0)

What is 20-2 in this question

Traci wants to buys rings that cost 50 dollars each. A jeweler is offering a offering a deal in which you buy 1 ring and get the second for 25% of and the 3rd for 50% off. The sales tax is 8%. Traci will buy 3 rings.