2x-7y=13 3x+y=8 solve by substitution

Solve 2 (x 1) = 2x 2. a.) all real numbers b.) no solution c.) 0 d.) 1

4. MAIL It cost Ramon $3.73 to mail a package to his grandmother. The post office charged $2.38 for the first pound and 45 cents for each additional pound. How much did the package weigh?

In a box-and-whisker plot, the interquartile range is a measure of the spread of the middle half of the data. Find the interquartile range for the data set: 10, 3, 7, 6, 9, 12, 13

Simplify the expression below

if a rental company charges $24.95 plus 5 cents per mile what would the function rule be between the cost of the rental and the number of miles you drove

A new building needed 14 windows the builder already installed five of them it takes four hours to install each window how long will it take him to install the rest

Which of the following phrases are equations? Choose 3 answers: (A) 60/5 = 4 * 3 (B) 74 = - 2t (C) q - 6 < q - 5 (D) (r-3) * s=s² (E). 9< (3v) (v+1)

If u is a unit vector, find u · v and u · w. (assume v and w are also unit vectors.) equilateral triangle

Cate and Elena were playing a card game. The stack of cards in the middle had 24 cards in it to begin with. Cate added 8 cards to the stack. Elena then took 12 from the stack. Finally, Cate took 9 cards from the stack.

What is the next term in this sequence? 103, 78, 53, 28, ... 3 4 13 14