Use the slope-intercept form of the linear equation to write an equation of the line with given slope and y-intercept. Slope: -6/5 y intercept (0,8)

The first week samantha learned to read braille, she could read 10 words per minute. in the second week she increased her speed by 20%. in the third week she increased her speed again by another 25%. how many words could she read per minute by the third week? hurry and tell me!