Which advancement in mathematics contributed to improvements in algebra? the use of formulas to show data
the use of vertical and horizontal axes
the development of multiplication
the substitution of letters for unknown numbers

swahili is an extremely rich and complex civilization, a set of ethnic groups articulated by a language and a series of cultural elements that fuse the african traditions, islam and indian culture. this growth was largely a result of the indian ocean trading network that brought in not just man-made riches, but also religious ideas, specifically islam, which had a significant impact on the local culture. furthermore, the development of the swahili language gave a common cultural unity to the people.

answer; i believe its (transgender);

the template that is used is page layout then the margins option and finally choose the normal option.