If m + n = 12 and n = 5, what is m-n? don't know the answer

Mr Jenkins bought pavers for some landscaping projects. He used 120 for a small patio, 86 for the border of a flower bed, and 70 for a wall. He had 24 pavers left. How many pavers did mr Jenkins buy?

There are 10 yellow, 6 green, 9 orange and 5 red cards in a stack of cards faced down. Once a card is selected, it is not replaced. P (two yellow cards)

G (n) = n² - 40 f (n) = 2n - 5 Find (gºf) (4) A=3 B=59 C=-5 D=45 E=117

Can someone show me how to solve this? A boat took 5 hours to travel 60km up a river, against the current. The return trip took 3 hours. Find the speed of the boat in still water and the speed of the current.

C=5 (f-32) / 9 solve for f

Zack says that the probability of rolling a number less than 4 on a six-sided number cube is 4/6. Valeria says that the probability is 3/6. Who is correct? Explain.

The unit price of hot dogs is $0.50/hot dog. How much will 12 hot dogs cost?

The formula to convert °F to °C is C = 5/9 (F - 32). 50°C = 122 °F Why do you multiply 50 by the reciprocal of 5/9

Yan is climbing down a ladder. Each time he descends four rings on the ladder, he stops to see how much farther he has to go. Which word in the problem indicates that a negative integer should be used 1 : Climbing 2: Stops 3: Descends 4: Farther

If a hat that costs $30 is discounted by 15%, what's the sale price?