Work out the value of (6.31×10⁵)+(2.6×10⁴) give your answer in standard form

Given abcd ac=38 and ae=3x+4 find the value of x

Which expression do you get when you eliminate the negative exponents of 4a^2 b^216a^-3 b

From the top of a tree a bird looks down on a field mouse at an angle of depression of 50°. if the field mouse is 40 meters from the base of the tree, find the vertical distance from the ground to the bird's eyes.