I have 15 finance question

.2

A person has $48 comma 00048,000 invested in stock A and stock B. Stock A currently sells for $3030 share and stock B sells for $9090 a share. If stock B triplestriples in value and stock A goes up​ 50%, his stock will be worth $139 comma 500139,500. How many shares of each stock does he​ own?

The person owns

nothing

shares of stock A and

nothing

shares of stock B.

3

4

5

6

A company is upgrading office technology by purchasing inkjet​ printers, LCD​ monitors, and additional memory chips. The total number of pieces of hardware purchased is 43. The cost of each inkjet printer is $116​, the cost of each LCD monitor is $140​, and the cost of each memory chip is $90. The total amount of money spent on new hardware came to $4680. They purchased two times as many memory chips as they did LCD monitors. Determine the number of each that was purchased.

Write a linear system of equations. Let x be the number of inkjet​ printers, y be the number of LCD​ monitors, and z be the number of memory chips. Choose the correct answer below.

7

A rental truck company plans to spend $13 million on 320 new vehicles. Each commercial van will cost $35,000​, each small truck $30,000​, and each large truck $80,000.

Past experience shows that they need twice as many vans as small trucks. How many of each type of vehicle can they​ buy?

8

9

10

11

12

13

14

15

15