What are the values of w and x in the triangle below? round the answers to the nearest tenth.

w = 13.3; x = 10.3
w = 10.8; x = 6.1
w = 13.3; x = 23.6
w = 10.8; x = 16.9

For which intervals is the function positive? select each correct answer. [-6, -4) (6, 8] (-4, 0) (0, 6)

With this one. will mark brainliest

For the rule of 78, for a 12-month period, the last term in the sequence is 12 and the series sums to 78. for an 10 month period, the last term is and the series sum is . for a 15 month period, the last term is and the series sum is . for a 20 month period, the last term is and the series sum is