I don't understand..i just learned this but the teacher told us to study by ourselves please help ​

Can you divide 25 into 4 equal groups? explain why or why not.

Find the value of the variable and the length of each chord for #5 and #6.

Which verbal expression best describes the algebraic expression 3x ÷ 5? the quotient of three times some number and five the product of some number and five divided by three the quotient of three and some number times five the sum of three and some number divided by five