She read 20 mysteries because 30%+20% is 50%. 50% (half) of 40 books is 20 books
Answer:184 cm^2
Step-by-step explanation:
10*6*2=120
6*2*2=24
2*10*2=40
120+40+24=184
Answer:
it's the step by step proceedure you use when solving an equation. Parentethese (do this first)
Exponents (take care of that after parentheses)
Multiplication
Division
Addition
subtraction (always the last step in the problem)
Step-by-step explanation:
I hope this help but in case you cant see it the answer is 174
4.
4x3=12
12+5=17
Therefore, the answer is 4.