PLEASE HELP ME I'LL GIVE YOU THE REST OF MY POINTS!!! The 9th and 14th terms of an arithmetic sequence are 23 and 33, respectively. What is the 1st term?

The first term is 5. The sequence goes by 2. And 23 is the 9th term. 9x2=18

23-18=5

the law of definite proportions states samples of a compound will always contain the same proportion of elements by mass. in other words, a given compound will always contain the same elements in the same proportions by mass.the law of multiple proportions states when two elements combine with each other to form more than one compound, then the weights of one element that combine with a fixed weight of the other are in a ratio of small whole numbers.