Help with this iready

Step-by-step explanation:

For the two rectangular sides: it is L * W

10 * 16 = 160

Since there are two sides, double it.

160 * 2  = 320. Save this for later.

For the two triangular sides: L * W * 0.5

8 * 12 = 96

96 * 0.5 = 48

Since there are two sides, double it.

48 * 2 = 96. Save this for later.

For the base: It is a rectangle, so its L * W

12 * 16 = 192. Save this for later.

Now add all of the values we saved together.

192 + 96 + 320 = 608 cm.

u = -(6/7)w

step-by-step explanation:

place all values with 'u' on one side of the equation.

4u + 8w = - 3u + 2w

4u + 3u = 2w - 8w

further simplify the equation by solving the addition and subtraction.

7u = - 6w

make 'u' the independent variable by placing its co-efficient on the right-hand side.

u = - (6/7)w