30 questions worth 2 points, and 10 questions worth 4 points.
Answer:
11x+5.25
Step-by-step explanation:
Open the brackets
1/2 x 10x= 5x, 1/2 x 6 =3
3/4 x 8x=6x, 3/4 x 3 =2.25
Like terms together
5x + 6x + 3 + 2.25
Answer
11x + 5.25
63 m3
9×2=18
18×7=126
126÷2=63
So first, you subtract 9 and 4, which gives you 5. Then, you add that to 5. That gives you 10.
37 cards. 9 cards of every suit + 1 more card to guarantee the 10 cards by pigeonhole principle.
