Which of these relations are functions?

y = 5x = - 2

y = 2x - 5

2y = x - 4

Round 25446 to 1 significant figure

X^3/2 - 2x^3/4 + 1 = 0 solve the equation (hint: it is quadratic in form)

The number 90 is 4 times more than 30

Is the function represented by the table linear? x y 10 - 6 11 1 12 6 13 12 Yes, because it has a constant rate of change. Yes, because it does not have a constant rate of change. No, because it has a constant rate of change.

Cities A & B are 5 inches apart on a map. Cities C&D are 4 inches apart. If C & D are 900 miles apart, how many miles apart are cities A and B?

It takes a baseball player 16 seconds to round the bases and make it back to home plate if it is 360 get to go around all the bases then calculate the players average speed

Container 85g contents 370g total mass=

What is the value of the expression when b=5? 4b2 + 2b2 - b2+5

Decide which unit rate is greatest and explain why using complete sentences. • 12 apples for $4 21 apples for $ • 35 apples for $14 45 apples for $16

6 hours more per week than Theodore studies. how to write this as an algebraic expression.