1) "If a = − 9 and b = − 6, show that (a−b) ≠ (b−a)." 2) (-3) + (-7) = (-7) +
3) Subtract − 134 from the sum of 38 and − 87.
4) Find the product of: 16 x (-36) + (-36) x -46
5) "Find each of the following products:i) (-12) x 0 x (-56) ii) (-654) x 1
6) "Verify a – (-b) = a + b for the following values of a and b. i) a = 15, b = 9
7) What will be the sign of the product, if we multiply 90 negative integers and 9 positive integers?

PLS GIVE IT FAST AND THE ONE WITH THE CORRECT ANSWER WILL GET MAXIMUM POINT AND A CROWN

Kayla and alberto are selling fruit for a school fundraiser. customers can buy small boxes of grapefruit and large boxes of grapefruit. kayla sold 3 small boxes of grapefruit and 1 large box of grapefruit for a total of $65. alberto sold 1 small box of grapefruit and 1 large box of grapefruit for a total of $55. what is the cost each of one small box of grapefruit and one large box of grapefruit?

Use the following statements to write a compound statement for the conjunction or disjunction. then find its truth value. p: an isosceles triangle has two congruent sides. q: a right angle measures 90° r: four points are always coplanar. s: a decagon has 12 sides. a) a right angle measures 90° or an isosceles triangle has two congruent sides; true. b) a right angle measures 90° and an isosceles triangle has two congruent sides; true. c) a right angle measures 90° and an isosceles triangle does not have two congruent sides; false. d) a right angle measures 90° or an isosceles triangle does not have two congruent sides; true.

The pyraminx is a rubik's cube-type toy in the shape of a tetrahedron. the pyraminx shown below has edges 15\,\text{cm}15cm long and vertical height h=12.2\,\text{cm}h=12.2cm. the triangle drawn with dashed lines is a right triangle. what is the distance rr? round your answer to the nearest tenth.