K + j = 54
j = k - 30
How many shells does Joshua have?
j=?

Identify an equation in point slope form for the line perpendicular to y=3x+5 that passes through (4,-1)

Which inequality statement describes the two numbers on a number line? "? 7 and a number 5 units to the right of ? 7"

Margie is practicing for an upcoming tennis tournament. her first serve is good 20 out of 30 times on average. margie wants to know the estimated probability that her first serve will be good at least four of the next six times she serves. how could she design a simulation for this scenario?