Answer:
81
Step-by-step explanation:
Assuming the ramp is against a wall or building at a 90 degree angle, then the 3 angles formed by the triangle within the ramp and wall are 9 +90 + x = 180 so 99 + x = 180 so x=81
I think that the answer would be 100. If I'm wrong, whoops! I'm not perfect, in fact nobody is.
Overtime, weather can shape our land in ways such as water levels rising or ice melting. Heat that is in the earth's molten core can over time cause lands to move (ex. Continental drift) and much more. Water levels are a problem mainly because of the rapid human population growth rate. In the future, weather could change the way that we live our lives.
4x + 1 = -3
"The product" is the term used to describe the answer of a multiplication equation.
"increased by" means you're adding.
"a number" refers to a variable.
I think its C im not sure