2 kg of bananas cost $20. How many kilograms of bananas can you get with $40

4+6x-3x^3 in standard form with explanations because i don’t understand

Find the domain and range of the following function f(x) = 51x - 21+ 4

The measures of two supplementary angles are (2x + 10)° and (8x + 10)°. what is the measure of the larger angle? a. 16° b. 44° c. 14° d. 138°