The sum of 3 and x is less than 7. What number sentence represents the statement?
O A. 3x<7
OB. 3+x<7
O C. 3x>7
OD. 3+x>7

Valentina is subtracting from . she finds the lcd to be 15y2. what is valentina's next step?

After t seconds, a ball tossed in the air from the ground level reaches a height of h feet given by the equation h = 144t-16t^2. after how many seconds will the ball hit the ground before rebounding?

Weekly wages at a certain factory are normally distributed with a mean of $400 and a standard deviation of $50. find the probability that a worker selected at random makes between $450 and $500