Answer:
B: 1620cm2
Step-by-step explanation:
16×15×2+30×20
Answer:
40
Step-by-step explanation:
you multyply 4 by 10 to get 40 or add 4 10 times
Answer:
2x(5x+1)(2x+3)=0
Step-by-step explanation:
x{20x^2+34x+6}=0
2x(10x^2+17+3)=0
2x(10x^2+15x+2x+3)=0
2x{5x(2x+3)+1(2x+3)}=0
2x(5x+1)(2x+3)=0
72, the sentence is 82 - 10 = 72
