What might have happened if the president had waited for Congress to draft a law making it illegal for defense industry businesses to discriminate based on race or color

In June of 1941, President Roosevelt issued Executive Order 8802, banning discriminatory employment practices by Federal agencies and all unions and companies engaged in war-related work. The order also established the Fair Employment Practices Commission to enforce the new policy.

Explanation:

Executive Order 8802 helped to establish the foundation for Title VII of the 1964 Civil Rights Act and Executive Order 11246 in 1965. This Order prohibited all forms of discrimination in employment and public facilities. Executive Order 8802 lead to future orders that abolished discrimination in public facilities.

in scientific notation, the value of the  speed of light in a vacuum

  will be written as 2.995 * 10^8. when this value is represented in the form of

  a * 10^b, then, a = 2.995 and b = 8.

the value of the speed of light in a vacuum given above can also be rounded up to approximately 300000000. in this case, the scientific notation will be written as 3 *10^8.