Which expressions are equivalent to the one below? check all that apply. 7^3 * 7^x a. 7^3-x b. 7^3x c. (7*x)^3 d. 49^3x e. 7^3+x f. 343 * 7^x

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

Students are given 3 minutes to complete each multiple-choice question on a test and 8 minutes for each free-responsequestion. there are 15 questions on the test and the students have been given 55 minutes to complete itwhich value could replace x in the table? 5507-m23-m8(15-m)8(15)-m

What is the common difference for this arithmetic sequence? -6,-2,2,6,10 a.4 b.5 c.3 d.6