If x+y = b and - x+3y=a, then what is y?

Carlos earns $9 an hour as a carpenter. If he worked 38 hours this week, how much will he earn?

Find the area of a rectangle with base 30 in. and height 4 yd. (Note: 1 yd = 36 in.)

Anna is in a cave 46 feet below the cave entrance. She descends 12 feet, then ascends 24 feet. Find her new position relative to the cave entrance.

The library is to be given 3 books as a gift. the books will be selected from a list of 18 titles. if each book selected must have a different title, how many possible selections are there?

Which set of coefficients of the terms in the expansion of the binomial (x + y) 3 is correct?

Zack wants to make a profit more than $300 for painting 4 identical rooms. The profit he makes is equal to the amount he is paid minus the cost of supplies. The cost of supplies 32.50 for each room.

The sum of the perimeters or two different squares is 32 centimeters, and the difference between there perimeters is 8 centimeters.

A necklace regularly sells for $18.00. the store advertises a 15% discount. what is the sale price of the necklace in dollars

Reagan surveyed a number of her classmates about what time they usually go to bed. Of the fifteen classmates she asked, three said 9 p. m. What percent of the students is this?

Do 8:14 and 20:35 form a proportion