Why were standardized math symbols important to the field of mathematics? They allowed bankers to keep track of money.
They made it easier to use the scientific method.
They made it easier for people to understand calculations.
They led to the creation of schools to teach mathematics.

the answer is hope this you.

the hollywood film industry of 1950 was threatened on several different fronts. television broadcasting was rapidly becoming the dominant entertainment medium in the united states. the paramount anti-trust consent decree requiring separate ownership for production companies and theater chains had gone into effect on 1 january 1950. large numbers of young men and women were marrying, having children, and moving to the suburbs, which affected the viability of downtown first-run movie theaters. foreign revenues were endangered by protectionist tactics including quota systems, high taxes, and blocked funds. finally, the morality and patriotism of hollywood films and filmmakers were under attack from government, religious, and citizens' groups.

explanation:

health and medicine because people are dying from not being healthy or not strong enough medicine