Moses earns a gross salary of 10 500 per month. the basic monthly expenses used from the income are as follows. housing expense 21%, food 36%, transport 10%,cellphone bills 1,9%.the rest is for savings. calculate Moses percentage for savings from his salary​

Omar is going on a road trip! the car rental company offers him two types of cars. each car has a fixed price, but he also needs to consider the cost of fuel. the first car costs $90 to rent, and because of its fuel consumption rate, there's an additional cost of s0.50 per kilometer driven.

What is the solution of log2  (3x  -  7)  =  3? 4 5

Math it's appreciated. (picture provided)