A CEO is paid a net annual salary of $175 980, what's his gross monthly salary if he makes a monthly deduction of $3579

Find all the values of x that make 0.1x + 0.25(102 - x) < 17.10 true.

Ineed asap.i cant understand this question i need someone to me right away

Giuseppi's pizza had orders for $931.00 of pizzas. the prices were $21 for a large pizza, 514 for a medium pizza, and $7 for a small pizza. the number of large pizzas was two less than four times the number of medium pizzas. thenumber of small pizzas was three more than three times the number of medium pizzas. how many of each size of pizza were ordered?