Answer:
2 74/100
Step-by-step explanation:
C. Multiply and add
Cost = (3×21.99)+45.99
Cost = $111.96
Answer:

Step-by-step explanation:The simplification
1+1×80+5-23+456×47+56784-2647
=1+80+5−23+(456)(47)+56784−2647
=81+5−23+(456)(47)+56784−2647
=86−23+(456)(47)+56784−2647
=63+(456)(47)+56784−2647
=63+21432+56784−2647
=21495+56784−2647
=78279−2647
=75632
Converting 75632 into standard form 
Answer:
y = 1/3x + 4
Step-by-step explanation:
The slope intercept form is y=mx+b so what we need to do is fill in the blanks. M is the slope and we know the 1/3 is the slope. (0,4) is basically meaning that the x-value is 0 and the y-value is 4, and when that's the case it means 4 is the y-intercept. Now we can put the information together y = 1/3x +4 is the equation.
Hope this helps and have a great day!