David has 36 apple and pear trees in his gardens. If he plant 4 more apple trees, he will have the same amount of apple and pear trees. How many of each tree does David have before planting more apple trees?

The dimensions of a hall are 20m*15m*8m. Find the cost of white washing it's walls and ceiling at the rate of rupees 20per 10m^2.

Express the ratios as a fraction without reducing. a. 6:13 b. 7:40 C. 45 : 36 d. 37 : 43

The temperature in a city increased from - 12 degrees at dawn to 7 degrees in the afternoon. What was the change in temperature in degrees?

A carpenter's tool box is made up of nails, screws, washers, and brackets in a ratio of 4:11:9:6. The total number of the pieces in the box is 60. If 5 carpenters have identical tool boxes, how many total washers are in the boxes?

The cost of renting a canoe to use on River Y costs $35. The cost of renting a canoe to use on River Z costs $5 per hour plus a 510 deposit.

you are preparing breakfast platters for teacher appreciation week you are serving an equal number of muffins and bagels the muffins come in packs of four in the bagels come in packs of six what is the least number of muffins and bagels you need to

I have a chart. The top bar has the numbers, 150,300,450,600,750, and 900. The bottom has the numbers 10,30,45,60,75, and 90. I need to find the relationship between them, but I can't.

The sum of 2 times a number and 5 is 11

Factor out coefficient of variable for 4h-3

Every day a zookeeper feeds 4 adult gorillas a total of 160 lb of food,. At this rate how many pounds of food would the zookeeper need every day to feed 6 adult gorillas?