5. You bought an 18 karats ring which contains 18g of gold. What is the % by mass of gold in a ring? A. 65%
B. 75%
C. 85%
D. 95%
(2016 a seat at the table or 2019 when i get home

What numbers are included in the set of integers? what numbers are not included?

Aflower has 26 chromosomes. to create a new flower, how many would a sperm cell have what is called?

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.