STD 10th maths exercise 3.5

solve the following pair of equations by cross multiplication method

3x + y = 5
5x + 3y =3

Which statement best describes the polynomial

Satchi found a used bookstore that sells pre-owned dvds and cds. dvds cost $9 each, and cds cost $7 each. satchi can spend no more than $45.

William invested $5000 in an account that earns 3.8% interest, compounded annually. the formula for compound interest is a(t) = p(1 + i)t. how much did william have in the account after 6 years? (apex)