What is the product of ✔3 and 7 ✔6 in simplest radical form?

This is so hard and it’s for a test

Olga used 100 ounces of flour to make 225 muffins. how many ounces of flour will be used to make 300 muffins?

With this question substitute t=3 and t=5 to determine if the two expressions are equivalent. 4(t + 3) 4t+12 which statements are true? check all that apply. a. the value of both expressions when t =5 is 32. b. the two expressions are not equivalent. c. the value of both expressions when t=3 is 15. d. the value of both expressions when t=5 is 23. e. the two expressions are equivalent. f. the value of both expressions when t=3 is 24.