Abigail is studying for the school spelling bee. she already knows 154 words from the vocabulary list. each day, she learns 31 additional words from the vocabulary list. which equation can be used to determine the total number of words abigail knows from the vocabulary list, y, over x days?
a. y = 31(x + 154)
b. y = 154x + 31
c. y = 31x + 154
d. y = 31x - 154

Average acceleration: i have no idea how to do this.

Which ratios are equivalent to 10: 16? check all that apply. 30 to 48 25: 35 8: 32 5 to 15

Someone answer asap for ! a ball is rolled down a ramp. the height, f(x), in meters, of the ball x seconds after it is released is modeled by the function f(x) = x²- 10x + 25 for all values of x from 0 to 5. which statement about the ball is true? a. the maximum height of the ball is 5 meters b. the height of the ball increases from 0 to 5 meters above the ground. c. the ball has traveled 5 meters when it reaches the bottom of the ramp. d. the ball has been traveling for 5 seconds when it reaches the bottom of the ramp