Porter's Cafe has regular coffee and decaffeinated coffee. This morning, the cafe served 36 coffees in all, 75% of which were regular. How many regular coffees did the cafe serve?
regular coffees

The graph shows the charges for a health club in a month. make a function table for the input-output values. writes an equation that can be used to find the total charge y for the number of x classes

Can some one explain how to slove specifically, what is the value of x? 0.9(x+1.4)-2.3+0.1x=1.6 enter the answer as a decimal in the box. x= ?

If rs 900 amounts to rs 1044 in 4 years, what sum will amount to 1368 in 3 1/2 years at the same rate