If the ratio of black jeans to blue jeans is 6 to 18 with a total of 240 jeans. how many of them are blue.

Ihave a 69 and an 82. the 69 is worth 40% of my grade and the 82 is worth 15%. can someone tell me my current average grade.

Which of these sequences is a geometric sequence a 1,2,4, 7, 11, 16, 22. b. 2.4.8.14.22.38 c.3.6.9. 15.18,21 d. 3,9,27,81,243,729,

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.