How to simplify the expression. 60m-15(4-8m)+20

What effect would doubling all the dimensions of a triangular pyramid have on the volume of the pyramid? explain your reasoning.

Jack brought 12 pet monkeys. if each monkey cost $45.99, how much money did he spend in all?

Which of these measurements is aboutthe same as 100 inches? a 10 centimetersb 250 centimetersc 6 metersd 30 meterswhich of these is the same as thenumber in the place-value chart? 1,000s | 100s 110s 1141 91 0a 1,994b 1,000 + 900 + 40cone thousand nine hundred fod 1 thousand 9 hundreds 4 tenswhich group of numbers is missingfrom this number pattern? 8, 12, 16, 32f 17, 18, 19g 17, 20, 23i 20, 24, 2822, 26, 30what number is missing from tnumber pattern? 20, 16, 18, 14, 16, -, 14, 10f 12g 15h 17j 18