How many grams are there in 4.5 kilograms

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

What is the volume of the cone to the nearest cubic millimeter? (use π  = 3.14) a) 46 mm3 b) 128 mm3 c) 183 mm3 d) 275 mm3 diameter = 5 mm height = 7 mm how do you do this problem step by step?

Which of the following circles have their centers in the third quadrant?