3x + 1/4 y^2 What is the value of the expression above when x = 3 and y = 4? You must show all work and calculations to receive full credit. (4 points)

13

Step-by-step explanation:

Given :

3x + 1/4 y^2

For x = 3 ; y = 4

3(3) + 1/4(4^2)

9 + 1/4(16)

9 + 4

= 13

d) 30 units^2

area of rectangle = l × b

we know,

length = 10 unit

breadth = 3 unit

applying the formula,

= l × b

= 10 × 3

= 30 unit^2

happy to

pls mark as brainliest

slope is 35 and 20 miles is the y-intercept.

step-by-step explanation: