Using only nickels, dimes and quarters, the minimum number of coins needed to cover every possible choice of 5¢, 10¢, 15€, --- to $1.35 is

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Jamie went to home depot.she bought 25 bags of soil that cost $9 per bag.she bought 15 pots at $8 each, and she bought 23 bags of pebbles at $15 each.she used a coupon that gave her $5 off for every 100 dollars she spent. how much did jamie pay at the end?

Given abcd ac=38 and ae=3x+4 find the value of x