Finding the mean and variance - can someone please do these thanks

Aline has a slope of and a y-intercept of –2. what is the x-intercept of the line?

Which rule describes the composition of transformations that maps ajkl to aj"k"l"? ro. 900 o to, -2(x, y) to, -20 ro, 900(x, y) ro, 9000 t-2. o(x, y) t-2, 00 ro, 900(x, y)

My hour hand points between the 8 and the 9 in 35 minutes it will be the next hour. what time is it ?