Which of the following is not a requirement of a standard form equation ax+by = c?
a. a 20
b. a and b are not both 0
c, a, b, and c are integers with a greatest common factor of 1
d. c+0

answer:

the list below shows the location of climate regions within africa. we can also use it to discover the locations of ecosystems. which of the following locations are correctly identified on the map above? region a – the sahel region b – the congo rainforest region c – the serengeti region d – the sahara desert a. region a only b. region a and c only c. region a, b, and d only d. all areas are identified correctly

step-by-step explanation:

i think asking google will you get the answer to that question