Find the hcf and lcm of the following. (1) 189 and 84. (2) 315 and 720. (3)616 and 392. (4) 1008 and 1764. (5)560,140 and 224. (6) 378, 567 and 252. (7) 435 and 261 (8) 16, 28, 44, and 68

Iam trying to solve a linear equation for the shoe size of someone 84" tall taking into consideration example 1 is 69" tall with a shoe size of 9 and example 2 is 72 inches tall with a shoe size of 11. i understand that the equation should be y=mx+b and that on the graph the answer is (3,2) but i just don't understand how to create the equation to solve for 84-inches and 60-inches tall questions. after two days, i need .

What is the value of x in the following equation? -3x-2=2x+8

Aflower has 26 chromosomes. to create a new flower, how many chromosomes would a sperm cell have? what is this process called? part 2: within a flower cell that has 26 chromosomes, how many chromosomes would a cell that is created within the stem of a flower as it grows, have? what is this process called?