Some time ago, keith's height and his nephew's height were at a ratio of 15 : 7. then keith's height increased by 16% and his nephew's height doubled. if keith is now 34 cm taller than his nephew, what is their total current height?

The function a represents the cost of manufacturing product a, in hundreds of dollars, and the function b represents the cost of manufacturing product b, in hundreds of dollars. a(t) = 5t + 2 b(t) = 7t - 2t +4 find the expression that describes the total cost of manufacturing both products, a(t) + b(t). a. 7t^2 - 7t + 2 b. 7t^2 + 3 +6 c. 7t^2 + 7t - 6 d. 7t^2 - 3t + 6

What is 140% of 25? because i need

Ron has 8 caps and 4 of his caps are blue. thes rest of his cap are red. how many of ron's caps are red