What is the sequence of these numbers 29.8 27.2 24.6 with the last one 19.4.
what comes before that?

22

Step-by-step explanation:

This is an arithmetic sequence.

Common difference = 27.2 - 29.8 = -2.6

So, the next term is got by adding (-2.6) to the previous term

24.6 - 2.6 = 22

in the attachment.   i didn't see your choices.   the word which means there is choices.

step-by-step explanation:

(x,y)

x tells you how much left or right you go from the origin

y tells you how much down or up you go from the origin

so for example (-3,2), you go left 3 and up twice. i denoted which of the ordered pairs is which in my graph.