What is an algebraic expression for "21 more than n "?

The lengths of the diagonals of a rhombus are 18 cm and 24 cm. What is its perimeter and what is the distance between the parallel sides? I don't know the distance but the perimeter is 60cm

A group of 30 students from your school is part of the audience for a TV game show. The total number of people in the audience is 140.

If Jimmy eats 50008866.64688 candy bars and his sister eats the same amount everyday for a week, how many candy bars will they have eaten in two week. P. S. Think outside the box.

What's is (3,-4) reflecting over the x axis

Which is pattern 12,24,36,48

If I have 3 water melons and a sick chicken how many colorblind dollars I have

F (x) varies directly with x and f (x) = 42 when x=14 find the value of f (x) when x=26

Find the coordinates of the orthocenter of triangle ABC with vertices A (2, 6), B (8, 6), and C (6, 2). A. (5, 4) B. (1, 2) C. (6,4) D. (6, 8)

Square root 8y+1+5=1

80 % of _ games is 32 games