What is an equivalent expression to 6(x-5)?

Naomi’s parents want to have 50,000, saved for her college education, if they invest 20000 today and earn 7% interest compound annually, about how long will it take them to save 50 thousand

Write the standard form of an equation with (see picture below)

Lana's family entered a 5-kilometer race lana's average step length is about 0.5 meter how many steps will she need to take the finish