Applications of systems of inequalities are used in which of the following areas? economics business astrology biology astronomy

Δabc is dilated by a scale factor of 3 with the origin as the center of dilation to form δa′b′c′. the slope of is -1.2. the length of is p units, the length of is q units, and the length of is r units. the slope of is . the length of is units.

Leslie started last week with $1200 in her checking account. during the week, she wrote the checks below.

Varies inversely with x. if y=8.5 when x=-1 find x when y=-1