Could someone explain the step to solving

25t-87.5=12.5?

The manager of a grocery store has taken a random sample of 100 customers. The average length of time it took the customers in the sample to check out was 3.1 minutes. The population standard deviation is known to be 0.5 minutes.

Explain the difference between (-5²) and - 5².

Write the ratio three sevenths 3 7 to 6 as a fraction in simplest form.

What is the graph of the function f (x) = the quantity of negative x squared minus 2 x minus 2, all over x minus 2

An economy package of cups has 500 green cups if the green cups are 20% of the total package how many cups are in the package

The budget for carter museum's annual party is $10,000. food accounts for 1/2of the budget, beverages for 1/4, and decorations for 1/10 of the budget. the remainder is spent on staffing the party. how much money is spent on staffing, the party?

Given a rectangle with a length of 21 cm and a width of 3 cm, which rectangle is similar? A) A rectangle with a length of 15 cm and a width of 5 cm. B) A rectangle with a length of 27 cm and a width of 3 cm.

A man is five times as old as his son. Four years ago, he was nine times as old. Find their present ages.

3) 1,4,5,5, 8, 9, 11,3,9,4,5 Mean Median mode

How do I find the area of a triangle with a base of 3 and height of 6