How do you find the first htree terms of the arithmetic series a1=12 an=124 sn=2244

Find the value of x. give reasons to justify your solutions! l, m ∈ kn

What is the unit rate of, 75% high fiber chimp food to 25% high protein chimp food.

Amountain climber starts a climb at an elevation of 453 feet above sea level at his first rest stop he has climbed 162 feet and by his second rest stop he has climbed another 207 feet its getting late in the day so the climber starts his way down if the climber desends 285 feet how much does he need to ascend or descend to return to the original starting point