60% of a number is 90 what is 50% of that same number

What is the grearest common factor of 56 and 92

Fill in each blank with the correct word to complete the sentence. The rules of the order of operations tells you to multiply

9*9 to the power of 18

Factor the following polynomial completely. -x2 y2 + x4 + 4y 2 - 4x2

Solve for V in V = s 3, if s = 4.

Estimate the solution to the system of equation. y=-x+2 y=3x-4

The kings ship sank with 8 gold bars aboard. The king paid Captain Nemo 4/5 of one bar for finding the gold. The Captain gave 1/2 of his gold to charity. What fraction of a bar went to charity?

This problem is about exact differential equations. This is the problem: y' = (3x^2+4x-4) / (2y-4)

The first week at robs new job he spent 12.84, 9.50, 10.25, 4.99, 8.59 on lunch In the second week, he spent $3.00 more in total for the 5 lunches than the first week What is the increase in the mean for the second week compared to the first?

What is the sum of the complex number 2+3i and 4+8i, where i=√-1?