7th grade work on integers ! Please help .

1. what is the measure of ∠abc? what is the measure of ∠abd?

Identify the slope an intercept of the following linear equation y = 1/5x - 6 a. slope: 1/5; intercept: -6 b. slope: 5; intercept: -6 c. slope: -1/5; intercept: 6 d. slope: 1/5; intercept: 6

Grant simplified the expression 1.5(-3.2 + 2.5) his work is shown below explain the error in grants work