Uma prova de conhecimentos gerais possui 80 questões. Se uma pessoa que acertou 56 questões tirou nota 7, quantas questões devem ser respondidas corretam para que a nota seja 8,5?

If f(x)=2x-6 and g(x)=3x+9, find (f-g)(x)

Lines a and b are parallel. what is the value of x? -5 -10 -35 -55

Amanda went into the grocery business starting with five stores. after one year, she opened two more stores. after two years, she opened two more stores than the previous year. if amanda expands her grocery business following the same pattern, which of the following graphs represents the number of stores she will own over time?