Find the values of x in which ((mod (x))/mod(x-1)))+(mod (x))=(mod(x2))/(mod(x-1))

The sum of two numbers is 86, and their difference is 20. find the two numbers

The dash figure is a dilation if the original figure. find the scale factor. classify the dilation as an enlargement or a reduction

Frank has a devised a formula for his catering business that calculates the number of meatballs he needs to prepare. the formula is m=4a+2c, where c=number of children; m=number of meatballs; a=number of adults. how many meatballs are required for a party of 10 adults and 5 children?