Which of these have one solution?

-21 - 8a = - 1 + 6 (4 - 5a)

33 + 6x = 3 (-1 + 5x)

4 (m - 1) + 5 = - (1 - 4m)

None

Square root of 64 simplify

Solve for b. 8b-1=24b+4

Ax-b=3x+5d what is x and d?

Jack spends 1 1/2 times as long on his homework as Jill. Last week, Jill spent 8 1/2 hours doing homework. How long did Jack spend doing homework?

A force with magnitude 20 N acts directly upward from the xy-plane on an object with mass 4 kg. The object starts at the origin with initial velocity vs0d - i 2 j. Find its position function and its speed at time t.

The area of a rectangle is 18 square centimeters. the length is twice the width. what is the width of the rectangle? 3cm 2cm 6cm 9cm

It costs a lumberyard $2.05 per cubic foot of lumber. If they sell the lumber back to their customers for $21.

How many atoms are in 115 grams of calcium

A store sold a total of 21,650 balls. It sold 11,795 baseballs. It sold 4,150 fewer basketballs than baseballs. The rest of the balls sold were footballs. How many footballs did the store sell?

What is the Mean medium and mode 1 2 2 2 3 4 4