Every five years in August, the population of a certain city is recorded. In 2010, the city had a population of 7500 people. From 2010 to 2015, the population decreased by 20%. From 2015 to 2020, the
population increased by 55%. What was the city's population in 2020? (3 points)

Which of the following could be the graph of the equation y = -2x + 5

Find the gradient of f(x,y,z)equals=left parenthesis x squared plus y squared plus z squared right parenthesis superscript negative 1 divided by 2 baseline plus ln left parenthesis x right parenthesis x2+y2+z2−1/2+ln(xyz) at the point left parenthesis negative 2 comma 1 comma negative 2 right parenthesis(−2,1,−2).

Find the value of x for which the lines are parallel.