77(7) = 539, the total points of all her tests
539 - 18 + 81 = correct total points = 602
602/7 = 86 which is the new average
Answer:
i pretty sure i do not know that answer to be honest
Step-by-step explanation:
i believe this because i dont know anything about this im still lost
Answer:
4=4x
Step-by-step explanation:
the formula y=mx+b
corresponds to y=slope+y intercept
all proportional relationships start on the origin so the y-intercept is always 0
the fact that the equation y = 4x doesn't have an intercept shows its proportional this can go with any similar equation like y = 4.5x
I don’t know what it is tbh
Answer:
D
Step-by-step explanation:
i know im correct