Evaluate Expressions Algebra 3

Evaluate 2a + 4b 
if a = 10     and    b = 6

• 20

• 24

• 44

• 4

The product of 7 and j increased by 3.

• 3+7j

• 7j-3

• 7(j+3)

• 3j+7

The product of 15 and c

• 15 + c

• 15 - c

• 15 x c

• 15 / c

What is the coefficient in this expression? 5c + 2

• 5c

• c

• 5

• 2

What is the constant in this expression? 5c + 2

• c

• 5

• 5c

• 2

What is the variable in this expression? 5c + 2

• 5

• 5c

• c

• 2

• 1

• 2

• 3

• 4

Work out the value of the following expressions when a = 3, b = 4 and c = 5.
3ab

• 10

• 12

• 15

• 36

Work out the value of the following expressions when a = 3, b = 4 and c = 5.
2a

• 5

• 6

• 8

• 10

Work out the value of the expression when x = 3, y = – 2 and z = – 4.
y + x – z

• -5

• -3

• 3

• 5