Answer:
Area of trapeze= (B+b):2×h
Therefore : (7+10):2×4=34
Good luck!
Answer:
2/6 of the book
Step-by-step explanation:

Answer:
3,000,000,000
Step-by-step explanation:
3 x 10^9 = 3 x 1,000,000,000 because if it were 10^1, then there would be 1 zero. Same thing for this. Since it's 10^9, there will be 9 zeroes.
It's many things, it's a binomial, an expression, a linear model.