Question

Помогите плзз. Очень срочно!

Answer 1

3) S=a^2 S=1.88^2=3.5344 см^2
4) 5x=7.4+3.3-1.7=9 x=9/5=1.8
5) 145/100=1.45 1.45*42=60.9
6) 24
2478, 2487, 2748, 2784, 2874, 2847, 4278, 4728, 4872, 4782, 4872, 4827, 7248, 7284, 7428, 7482, 7842, 7824, 8742, 8724, 8472, 8427, 8247, 8274.