When 12 is subtracted from 3 times the number the result is 24 what's the number

Ifurniture stores having a weekend sale and is offering 20% discount on patio chairs and table the sales tax on furniture is 6.25 using function composition how can you represent the total amount a that you would need to pay for this furniture that cost x dollars

What is fraction that is equivalent to 3/8

Write the equations in logarithmic form 7^3=343