Answer:
57+28x
Step-by-step explanation:
only this
i don't know you 4x2 or 4x+2
Y=7x+3 because slope intercept form is y=mx+b where x is the slope and b is the y intercept so when you plug in the slope of 7 and the y intercept of 3 you get the equation y=7x+3.
Letter C)63=9x7, multiplication
The triangle BAC has two known measurements 30 and 90 so add those together and subtract by 180
30 + 90 = 120
180 - 120 = 60°
