2a+5a is equals to what after it's solved

P (a b) = 0.25 and P (b) = 0.4, what is P (aub) ?

Scaling up fabric amounts

If the sum of 4 consecutive numbers is 126, what is the first number?

What is the LCD of 3/7x, 6/7x+7

A square piece of paper is folded in half vertically. The resulting figure has a perimeter of 21 in. What is the number of units in the greatest possible perimeter?

How do you determine if a given set of measurements works for the side lengths of a triangle? (It should be a number)

If cosx = sin20, find the value of x, 0 Solve for x correct to the nearest minute given sin^2 x-3sin xcosx+2cos^2 x=0, where 0≤x≤180

What is 45 times 35 divided by 344

2/5k-3/5+1/10k simplify

A sling is being rotated at the rate of 99 rpm. Give each answer as an exact fraction. a) What will the length of the sling have to be so that the speed of the object at the end will be 53 meters per second? (in meters) meters