72+28+66+81=297
360-297=63
She would need to score 63 on her last exam.
Answer:
7 is the answer add 3 and 4 to gather
I am learning this right now but in two hours I will tell you
Answer:
C. X = 10.247
Step-by-step explanation:
X -4.21 = 6.047
just you will add 4.21 to both sides of the equation
X -4.21 + 4.21 = 6.047 + 4.21
X = 10.247
Complete the math in the brackets (4a + 1)
Multiple each term in the brackets by 4a
4a (8a - 4a + 1)
4a (4a + 1)
16a^2 + 4a