(01.05) write the equation of a line with a slope of 3 and a y-intercept of 1

We can use the slope-intercept form of a line with the given slope and y-intercept.  y = mx + b and m is the slope and b is the y-intercept, so it's easy to plug in the slope and y-intercept.  y = 3x + 1

Answer d; a supplementary angle = 180°, so if that angle = 150°, y would = 30°.

1. 0.3 •4 is the same as 4 groups of 0.32. 7•0.8 is the same as 7 groups of 0.83. it increases by 0.5 every time, so 0.5x4 it increases by 0.9 every time, so 0.9x5. 0.9•12=10.86. 0.47•5=2.35i can finish the next ones in a separate post