exam Maths Puzzle Numerical Ability

Please help me solve this problem if a rectangle has length x+3 and width x-7. Find the area of the rectangle in terms of x.

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exam Other Question

Solve the following system of equations using the substitution method:
4x - y = -6
x + 2y = 3

please show work a fruit company makes snak containing dried apples and raisins. Dried apples cost 38 cents per ounce, and raisins cost 28 cents per ounce. To make a 10 ounce snack that will cost 34 cents and ounce, how much of each dried fruit will be used?