Ecuaciones

1) 3(2x+5)-4=8x+1
2) 3-(4h+2)=2h-9+4
3) 2m+3/4 =4-8m/3
4) 3x/5 +x+2=5x-1

resolucion por favor

What could explain what happened when the time was equal to 120 minutes

Last year, a state university received 3,560 applications from boys. of those applications, 35 percent were from boys who lived in other states. part a)how many applications did the university receive from boys who lived in other states? part b)applications to the university from boys represented 40percent of all applications. how many applications did the university receive in all? i don't how to do part b so me and plz tell how you got your answer

Thales was an ancient philosopher familiar with similar triangles. one story about him says that he found the height of a pyramid by measuring its shadow and his own shadow at the same time. if the person is 5-ft tall, what is the height of the pyramid in the drawing?