exam Maths Puzzle Numerical Ability

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?

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exam Other Question

Suppose you have six families consisting of a mother, a father, and a child.

How many ways can the families sit in a row of 18 chairs such that members of each family are sitting together? find the standard form of an equation for each graph described

slope = 3/4,y-intercept = -3

my try: m=3/4 (-3,0)
y=3/4x + b
0 = 3/4 x -3/1 + b
0 = -9/4 + b
9/4 =