9. Jenny, Mary and Anna have a total 390 stamps. Jenny has 39 stamps more than Anna and Annahas 45 stamps more than Mary. How stamps does Jenny have?10. If a + b = 279, a 11. In this figure, MNPQ is a square. Each its side is
15cm long. MGHQ is a rectangle and its widthis 12cm shorter than it[r]