Please solve k-3/4 = 10,
Z+5/7 = -3, and
9+t/12 = -3 with work too please

Step-by-step explanation:

Add the 3/4 to cross it out on the left side and whatever you do to one side you do to the other side. so you add 3/4 or .75 on to 10 to get 10.75.

k-3/4=10

k=10.75

Subtract the 5/7 from the Z and subract it from -3 to get, -3.71.

Z+5/7=-3

Z=3.71

Subtract 9 from the left side and subtract 9 from the right side.

9+t/12=-3

t/12=-12

Then you would multiply by 12 from the left side and multiply by 12 from the right side.

t/12=-12

t=-144

answer: $201

step-by-step explanation: to get the answer, you first get 3 nieces that he sold and multiply it by 67 and get $201, so he earned $201 selling his nieces.

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.