Tony is using these numbers to make a new number: 12, 1, 4, 7. He can use brackets, +, -, x and the divide sign as often as he wishes.

He can't use any number more than once.

He cannot use powers.

He cannot put numbers together, eg he can't use 147.

What is the biggest number he can make and show how he can make this number. (MathsWatch)

Find all the values of x that make 0.1x + 0.25(102 - x) < 17.10 true.

Jonathan pays $1.90 per pound for potatoes. he buys 8.3 pounds of potatoes. he determines that he will pay $15.77, before tax, for the potatoes. which best describes the reasonableness of jonathan’s solution? jonathan’s answer is reasonable because there are two decimal places in the factors and two in the product. jonathan’s answer is unreasonable because there are three decimal places in the factors and two in the product. jonathan’s answer is reasonable because is 16, and 16 is close to 15.77. jonathan’s answer is unreasonable because is 8, and 8 is not very close to 15.77.

The volume of a cube-shaped shipping container is 13,824 cubic inches. find the edge length of the shipping container.