Leon has a container filled with 500 grams of coffee beans. Each morning, he uses 4 grams to make a cup of coffee. Which expression represents the amount of coffee beans remaining after d days? Expressions:
A. 4d - 500
B. 500d + 4
C. 500 - 4d
D. 496d

Christina can paint 420 square feet in 105 minutes. which unit rate describes the scenario?

M? aoc=96 ? space, m, angle, a, o, c, equals, 96, degree \qquad m \angle boc = 8x - 67^\circm? boc=8x? 67 ? space, m, angle, b, o, c, equals, 8, x, minus, 67, degree \qquad m \angle aob = 9x - 75^\circm? aob=9x? 75 ? space, m, angle, a, o, b, equals, 9, x, minus, 75, degree find m\angle bocm? bocm, angle, b, o, c:

Use pascal's triangle to find the missing values. x4 - 4xb + 6x2 - ax + 1