4. Kelly bought a total of 30 game cards some of which cost $0.45 each and some of which cost $0.60 each. If Kelly spent $16.05 to buy these cards, how many cards of each type did he buy? write the lease number first, use a comma with no space.

Please help

ok so for the the games that cost $0.60 would be 20 of them while for the $0.45 games there will be 10

Step-by-step explanation:

I say this because $0.45 times 10 equal $4.50 while $0.60 times 20 equal 12.00 and 12.00+4.50=16.50 and 16.50 is the closest to 16.05.

d) 30 units^2

area of rectangle = l × b

we know,

length = 10 unit

breadth = 3 unit

applying the formula,

= l × b

= 10 × 3

= 30 unit^2

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1. 3. can also be expressed as (22/7)

2. -4.5

3. 3.6

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