Determine whether the given ordered pair is a solution of the system. (3,-4)
y = 5x - 19
3x + 5y = - 11
Is (3. – 4) a solution of the system?

Write the fraction or mixed number and the decimal shown by the model

Find the value of p for which the polynomial 3x^3 -x^2 + px +1 is exactly divisible by x-1, hence factorise the polynomial

Asurvey of 45 teens found that they spent an average of 25.6 hours per week in front of a screen (television, computer, tablet, phone, based on the survey’s sample mean, which value could be the population mean? 2.3 hours 27.4 hours 75.3 hours 41.5 hours