Solve For Each Variable

1. 6r + 7 = 13 + 7r

2. 13 - 14x = 1 - x

3. 2 (x + 7) + x = - 20

4. - 8 - x = x - 4x

What is the value of a? 5/6 (a-8) = 7 Enter your answer in the box.

Rita travel 1250 miles in the first 3 days of a trip. At this rate, how long will it take her to travel 1875 miles

Karen purchased a prepaid phone card for $30. Long distance calls cost 16 cents a minute using this card. Karen used her card only once to make a long distance call. If the remaining credit on her card is $24.

Morgan has 158.62 in his checking account, and writes 5 checks to pay bills for 19.45 each. What is his new balance in the account?

What is the steph to calculate the volume of a prism

To choose a sample for a survey of seventh graders, the student council puts pieces of paper with the names of all the seventh graders in a bag and selects 20 names. Is it ransom sample or a biased sample. Explain.

The radius of a basketball is 4.7 inches what is the volume of the basketball round to the nearest ten

1) 3x^2 + 4x + 5x^2 - 5y 2) (4x - 2y) - (2x + 5y) 3) 3x^3 (4x^2) 4) 5 x cubed y to the fourth z all divided by 10 x y squared z cubed 5) (-8a^3b^4) ^2 6) (x + 6) (x - 6) 7) (2x - 7) ^2 8) (2x + 5) (3x - 7) 9) 5 x cubed y plus x y to the fourth plus

An election ballot asks voters to select four city commissioners from a group of sixteen candidates. In how many ways can this be done?

A high school baseball team averaged 800 fans for each of its seven home games. What is the order of magnitude of the total attendance? A. 4 B. 3 C. 2 D. 5