Answer:
30 out of 40: 75%
40 out of 50: 80%
40 out of 50 is the better score
Answer:
Okay the question is a little unclear, but if he's only doing english, science and history the answer should be <u> 17/40</u>
Step-by-step explanation:
1/5=8/40
3/8=15/40
8/40+15/40=23/40
40/40-23/40=17/40
3b because b^2-4= 1/b. So 2/1/b= 2b b+2b = 3b
-.75. 3÷4 = 75. put a negative sign beside it and it’ll be negative boom.