Answer:
Hello,

Step-by-step explanation:

Step-by-step explanation:
see the answer in the pic
Answer:
a.) 10% is correct. If you add them all together it's 50 pennies. Lincoln and steel pennies equal 10 and 10 of 50 is 10%
Answer:
300 is the solution
Step-by-step explanation:
use the distributive property
75 * 7 = 525
75 * -3 = -225
put em together
525 - 225 = 300