D. Solve the following problems involving addition of polynomials. Show your solution. 2. Give the total of 4a - 3b + 2c, 5a + 8b - 10c and -12a + c.

3. Add 13x4 - 20x + 5x - 10 and -10x2 - 8x4 - 15x + 10

4. Three polynomials are to be added: 4x2 + 2x, 9x² + 3x + 4 and x2 - 4. What is the single polynomial
that can represent them?

5. The lengths of A is 3x + 5 (m), that of B is 4x - 1 (m) and C is 2x + 9 (m). Find the sum of these
lengths​

Martin likes to make flower bouquets that have 3 daffodils and 4 tulips per vase. a daffodil has a mass of d grams, a tulip has a mass of t grams, and the vase has a mass of u grams. the expression 5(3d + 4t + v) describes the mass of 5 bouquets. match each amount in the situation with the expression that represents it. situation expression number of bouquets mass of one bouquet mass of the tulips in one bouquet 4t mass of the daffodils in one bouquet 3d + 4t + v

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r

An investment decreases in value by 30% in the first year and decreases by 40% in the second year. what is the percent decrease in percentage in the investment after two years